Guys will rarely get texted first, that's just how it is. I'd say initiate conversation with someone you find attractive, but don't just say "hi" or "you're cute". Ask something interesting and keep going from there :D
Hot girls aren't going to just randomly message you in most cases. You just gotta make friends with people who are like minded. Some of them may be hot girls. I get messages from a few hot girls on here, but we have like views most of the time and I've been on here for a while.