As a booty call or hookup only, hes only going to text or call when he gets laid if he sees you. If he thinks about you as something more, though, hes going to be in alot more regular contact. A good sign that he wants more with you if hes texting you daily, and replies to your messages immediately, thats.

How do you know if he wants more than hooking up?

Someone who is boyfriend material would want both of you to fully enjoy the experience and he would care about how you feel too. Another thing to notice is whether he wants to cuddle in bed after doing the deed, or if he just goes to sleep right after or even straight up bounces and leaves no time for pillow talk.