How do I get my crush’s number? Update: MISSION ACCOMPLISHED!

I have been flirting with a guy in my class for a few weeks. Once a week since September. I have 5 more chances to see him before the class is over. (See previous posts on my account.)

How can I be sure to get a number so that I continue our cute conversations?

PS: I am crushing so hard it is ridiculous! Help!

Update: After two weeks, I got brave and went for it and he gave it to me! It’s amazing what can happen when you just go for it!

Now any advice about keeping the conversation moving forward would be great!