It seems like he likes me, but he's giving me mixed signals?

There's a guy I know from the high school hockey team that I manage. He keeps giving me these mixed signals that he likes me. He always walks really close to me, and shoots pucks at the gl right where I am, I constantly make eye contact with him. One time at an overnight bus trip we were on, he walked past me at the hotel and he yelled my name and was like "what's up??" After practice, I was waiting for my dad to come pick me up, and he walked past me and he said "see ya" and he's the only one that says thank you to me when I do stuff for him and he seems to want to make conversations. He also seems to go out of his way to be near me. The only thing is, when I ask him for a favor, like if he could give me a ride to a game or two, he would always say no. Partially because he rides with one of the other guys and he doesn't have enough room in his truck, and it takes him forever to text me back or answer my chat messages on facebook. Please give me your opinion!! (: Thank you!!