What can I say to be polite in Flemish?

Flemish for Flemish is "Vlaams", but the language is actually Dutch (Nederlands), Vlaams is basically just a dialect of Dutch (kind of like what they speak in Texas vs stiff upper lip British, etc).

You should get around just fine with French, German and English though.

Dank u wel - thank you

Alstublieft - please

Spreekt u Duits? - do you speak German?

Spreekt u Frans? - do you speak French?

Spreekt u Engels? - do you speak English?

Ik kom uit Canada - I come from Canada

Hoe kom ik op centraal station? - How do I get to central station?

Rechtdoor - straight on

Links - left

Rechts - right

Eerste - first

Tweede - second

Derde - third

Vierde - fourth

Stoplicht - traffic light

Kruising - intersection

Splitsing - where one road splits into two, a Y-shaped intersection

Bus - bus

Trein - train

Metro - subway

Tram - tram

Halte - (bus or tram) stop

Stoppen - to stop

Uitstappen - get off (the bus/train)

Instappen - get on (the bus/train)

Flemish is called Vlaams and is the Southern dialect of Dutch.

Some nice things to say:

Good Morning - Goede Morgen

Good evening - Goeden avond

Thank you - Dank U

Excuse me - Excuseer

Please - alstublieft

Enjoy (food) - Smakelijk eten

Beautiful - mooi

What is your name - Wat is Uw naam

Pleased to meet you - Aangenaam U kennen te leren

Do you speak English - Spreekt U Engels ?

I don't speak Flemish - Ik spreek geen Vlaams.

I hope these will help you. But don't worry EVERYBODY in Antwerp speaks English. My Mom was from Antwerp.