Good luck on the date.

Keep cool. Nothing terrible will happen if you meet her. Don't be afraid or ashamed, only yourself. You may or may not get to know each other better. Just act normal, don't act like you are under pressure or afraid, that will only ruin anything that could come out of it.

A cafe is a bar or restaurant? or whatever word you use in your language. Find a decent one you like and go with her there.