For those of you who have never been to "Beantown," whether or not you will consider visiting  in the near future, the following is guideline information on Boston and the surrounding area:

There's no school on School Street, no court on Court Street, no dock on Dock Square, no water on Water Street.
Back Bay streets are in alphabetical "oddah": Arlington, Berkeley, Clarendon, Dartmouth, etc.
So are South Boston streets: A, B, C, D, etc.
If the streets are named after trees (e.g. Walnut, Chestnut, Cedar), you're on Beacon Hill.
If they're named after poets, you're in Wellesley.
Massachusetts Ave is Mass Ave; Commonwealth Ave is Comm Ave;
South Boston is Southie. The South End is the South End. East Boston is Eastie The North End is east of the former West End.
The West End and Scollay Square are no more; a guy named Rappaport got rid of them one night.
Roxbury is The Burry, Jamaica Plain is J.P.

How to pronounce these Massachusetts city names correctly  **(Say it wrong, be shunned!)**:
Worcester:  Wuhsta (or Wistah)
Gloucester:   Glawsta
Leicester:        Lesta
Woburn:        Wooban
Dedham :       Dead-um
Revere:          Re-vee-ah
Quincy:         Kwinzee
Tewksbury: Tooks berry
Leominster:  Lemin-sta
Peabody:       Pee-ba-dee
Waltham:     Walth-ham
Chatham:       Chaddum
Samoset:        Sam-oh-set or Sum-aw-set -- but nevah Summerset!

Definitions:
Frappes have ice cream, milkshakes don't.
If it's fizzy and flavored, it's tonic.
Soda is CLUB SODA.
"Pop" is Dad.
When we want Tonic WATER, we will ask for Tonic WATER.
The smallest beer amount is a pint.
Scrod is whatever they tell you it is, usually fish. If you paid more than $6/pound, you got scrod.
It's not a water fountain, it's a bubblah.
It's not a trashcan, it's a barrel.
It's not a spucky, a hero or grinder,... it's a sub.
It's not a shopping cart, it's a carriage.
It's not a purse, it's a pockabook.
They're not franks, they're haht dahgs -- if they're Frank's keep your hands off them!
Police don't drive patrol units or black and whites, they drive a "crooza."
If you take the bus, your on the "looza crooza."
It's not a rubber band, it's an elastic.
It's not a traffic circle, it's a rotary.
"Going to the islands" means going to Martha's Vineyard & Nantucket.

Things you should know:
The Sox = The Red Sox
The C's = The Celtics
The B's = The Bruins 
There are two State Houses, two City Halls, two courthouses, two Hancock buildings (one old, one new for each).
The colored lights on top the old Hancock tell the weatha':
"Solid blue, clear view...."
"Flashing blue, clouds due...."
"Solid red, rain ahead...."
"Flashing red, snow instead...." -- except in summer; flashing red means the Red Sox game was rained out.
Route 128 is also I-95 south. It's also I-93 north (most people who live here all their life still don't know what the hey is going on with this one).
The underground train is not a subway. It's the "T", and it doesn't run all night (this ain't Noo Yawk).
Order the "cold tea" in China Town after 2:00 am, and you'll get a kettle full of beer.
Bostonians... think that it's their God-given right to cut off someone in traffic.
Bostonians...think that there are only 25 letters in the alphabet (no R's - except in "idea").
Bostonians.. .think that three straight days of 90+ temperatures is a heat wave.
Bostonians...refer to six inches of snow as a "dusting."
Bostonians...always "bang a left" as soon as the light turns green, and oncoming traffic always expects it.
Bostonians...believe that using your turn signal is a sign of weakness.
Bostonians...think that 63-degree ocean water is warm.
Bostonians...think Rhode Island accents are annoying.

Things to beware:
Don't pahk your cah in Hahvid Yahd .. they'll tow it to Meffa (Medford) or Summahville (Somerville).
Don't sleep on the Common. (Boston Common)
Don't wear Orange in Southie on St. Patrick's Day. 

Sorry, had to make sure Bostonians would understand which type of alien you used to be...

The general New Hampshire equivelents (realizing that there may be a greater compliance towards our New Hampshire / Massachusetts border):
Worcester:    Wuhstur
Gloucester:   Glow (as iin how) - stur
Leicester:      Lestur
Woburn:        Woe-burn
Dedham :      Dead-um (NH's is spelled and pronounced nigh the same)
Tewksbury:   Tuwks bury
Leominster:   Lem-stur
Waltham:      Walth-ham (or Wall-tham/Wall-thum)
Chatham:      Chath um

Our Newcastle is the smallest geographical township in the state -- wholly on the largest islend in the mouth of the river, the name pronounced much as do your Newcastle's locals. On that I should clarify, perchance the need, that the Bostonian rendering of the 'ook' in "Tewksbury: Tooks berry" is as the word took, rhyming with look or book.
In my own personal alphabet from many moons ago, of the character renderings (letters) were one for the long u sound (as in book, look or took) and its modified character for the old Brythonic w (from whence 'double-u') sound (as in boo, new, too -- you might say that usage has gone down the loo). The problem is that the "as in" words may not be pronounced the same either, say nothing of the local nuances of speech.
Should the legendary West Saxon, king Alfred (the Great), arise for a chat, I wonder with whom he would have a successful verbal exchange? We won't try to answer that question with king (chieftain or whatever) Arthur -- he wasn't even English (your attempted conversation might end fast should he realize you were deeming him anything related to the Angles or Saxons).

That is why I clarified, since the same occurs here. In my pronunciation of Tewksbury, the oo is rendered similar to the old Brythonic vowel w, the same as I pronounce the sound in true, new, goo or too. I render closely to the same in goof, roof or rooves, whereas, my pronunciation of hoof or hooves is closer to that in book. This grated on my maternal grandmother, the Costains being schooled in Canada; she used the book oo sound in hooves, roof and rooves; strange to me, she used the too oo sound in hoof.
I have my own alphabet with its own characters. Unfortunately, my phonetic alphabet, though certainly not exhaustive, isn't available to the typing world but I also have a  modified English one where I've borrowed characters from the old Greek. Beginning my revisions when I was about 12 (it started with a standard 'code' alphabet in our camping club wars), the six English vowels were progressively expanded to 12 (howbeit, y is only a consonant); c, q and x were replaced: c = ch (as in chair), q = sh, x = th (as in thud) and x = th (as in these or thus). The original k and s sounds for c are rendered with those letters; q = k (as with Qatar) and qu = kw; g and j are only used for their hard sounds and I use a dash over the j (not the dot) for their soft sounds. Although a few words are made longer (six = siks), most are shorter because any letter not pronounced (most often, an e) isn't there; that's also true for nit (night), etc., unless I were writing a story whence the character spoke in ancient English but, still, with only the g so that one wouldn't choke themselves with their tongue as with the actual, ancient utterance.
Oops... I wasn't intending to type all of this...

As noted with Bostonians, it's not pronounced the same everywhere here nor in the U.K. Technically, if I pronounced new as spelled, I'd barely start to pronounce a short e (the letter eb in my alphabet) but quickly change to the Brythonic w. I believe that is why the second pronunciation key of 'nyoo' is given in the dictionary, although the y would cause me to extend its sound causing a much more noticable difference.

Even 'native' English speakers migrated over here from different areas and with differing education levels, impacting both pronunciation and spelling (as you changed your words and spellings, we followed suit but, even fairly fresh from our 'seperation', it wasn't necessarily your suit and some things weren't changed); neither did many of our hierachy come from the aristocratic schools that more of yours did (some of ours had very little, if any, formal schooling) and, to them, were added many from other language backgrounds.

As you should know, I sometimes get carried away -- but usually come back in with the tide. There are times, though, that the tide goes without me and leaves me beached.

I can see that we might be relating ou to you. Although I, too (tw), rhyme new with too, I rhyme hew with your new... but I don't rhyme with any of them when I sew.

Not so much to his credit/discredit with the pronunciation and not entirely with the spellings, either. We also differ on words that weren't in use in his day.