How long do guys wait to text a girl?

Me and this guy were in a play together for like a month. I caught him looking at me a few times and whenever I walked by him, he would look up at me. When we had our first dress rehearsal with makeup, I'm pretty sure he did a double-take lol. He almost always looks directly into my eyes when I'm talking to him and literally always listens to me. Sometimes I turned around after talking to someone else only to find that he was listening the whole time. Sometimes he faced me when we talked & he purposefully sat by me once or twice. I drew on a beauty mark for my costume and he noticed the 1st time he was close enough to see--most guys wouldn't. We also had staring contests, which were an easy segway into flirting. After I won our second staring contest (he challenged me to best 2 out of 3), I tried hinting at him to go to out just to see how he would react ("I won the staring contest. That means I get a prize. I like Starbucks"). He bailed out with the "poor college kid" schpeal, but gave me two hugs. But, he hugs anyone who asks. Once, I was joking about how cute this old man was & all the fun things I wanted to do with him & he seriously replied "My mom would do that". Another time, I was talking about my emetophobia because a stomach virus was going around & he looked me in the eyes and assured me that I wouldn't get sick. I asked for his number on FB and he gave it to me with a smiley face. However, I ALWAYS have to start the convo in text & in person. Wth?