Here is a game that you need to answer a question wihch asked by the person above you, and you need to ask a question to the next people.
Just like this:
#1 You have more than 3 boyfriends/girlfriends before?
#2 Yes. How many girls/boys have you kissed?
#3 Too many, I can't remember. Have you got marriage?
You'd better give the ture answer, and you can ask everything you want to ask!
Now begin: How many children do you have?