A few French phrases to get you started:

Hello = Bonjour
Goodbye = Au revoir
Yes = Oui
No = Non
I speak (a little) French  = Je parle (un peu de) français
Do you speak English? = Parlez-vous anglais?
How do you say… in French? = Comment dit-on….. en français?
I don’t understand = Je ne comprends pas
Okay = D’accord
And = Et
Who = Qui
What = Quoi
When = Quand
Where = où
Why = pourquoi
How = comment