Does he like me?What do you think?

We met at the local skate park a couple of weeks ago and now I've realized how much I love him. I need to know if we both have a chance together. We see each other every evening at the park or skating ring and have a race or some sort of fun thing.His sister reckons we're cute together,but I'm not so sure. He always plays around with my hair,teases me,gives me advice and the best thing i like about him is he likes to have fun, we're both 22 and still, do teen-age things.He's single.Do you think he likes me?