After reading quite a lot of posts, I am honestly kinda confused.

Pardon my ignorance of this is a stupid question, but how do you know if you should ask a girl out directly or you should slowly build rapport and once she's comfortable, ask her out?

I'm currently in college and while talking to a girl I'm interested in, I'm conflicted on whether I should just go for it or I should just slowly build up a much more solid relationship with her first and then ask her out.