So yes, they do speak English....

I recently found my journal I had used in Northern Ireland, and in it a three-page lists of the differences in words that delighted me there. So, for the amusement of whoever may stumble across this, here they are.
Fanny pack= bum bag
elevator = lift
hamburger bun = bap
escalator = elevator
cookies = biscuits
bathroom = toilet
truck/semi = lorry
pop = lemonade/Sprite
ibuprofen = cupofen
ride = lift/leaving someone home
Doin' fine = tickety-boo
ten-thirty = half-ten
cool = klass/grand/brilliant/beezer
pound (money) = quid
flyer = leaflet
cupcake = bun
university = uni
trailer = caravan
pants = trousers/jeans
underwear = pants (many embarrassments from this)
hair bandie = hair bob/bobble
fun = craic (pronounced "crack")
parking lot = car park
little = wee
sidewalk = footpath
trash = rubbish
you all/you guys = youse/yous/use
sweatpants = track bottoms
paper bag = rucksack
hood (of car) = bonnet
trunk = boot
sunscreen = suncream
whining = whinging
exhausted = whacked/shattered/wrecked
broom = brush
walk = dander (take a wee dander down to the beach..)
What's up? = How's craic
scotch tape = cello tape
popsicles = ice lollies
crush on = fancy
figured out = sorted
ditch = shough
vacation = holiday/hols
two weeks = fortnight
dear = pet
fool = gull
keep going = keep 'er lit
picture = photo
And my favorite difference: They will use lovely to describe someone, and they are not talking about their looks.