Tomorrow, I get to see her at church again!! (I only ever see her at church)

I really like her, I am just about positive she likes me too!!!

Any ways, she has to leave shortly after church is over, so I don't get to talk to her for very long. We have donuts after church, but she has only stayed a few times.

How can I get her to stay longer for me to be able to talk to her for a while longer?
I really want to talk for a longer period of time.

(I am not allowed to date, I am 17, she is 16, going to be 17)

Please if anyone can answer this tonight, that would be great!!!!!