How do I get an older guy that I barely see interested in me?

[Paris Amour]

I've recently started liking this guy who I see once a week. He is about 2 to 3 years older than me. When we see each other, we talk and connect, but during the rest of the week I don't think I'm EVER on his mind. I think part of the reason is that he's in school hanging with his age group of friends so I doubt he would ever think of me. Also we're not connected through any social media sites or texting. I feel like he still sees me as a "little kid" even though I look older than my age. Should I wait a few years till the age isn't such a big deal? HELP?

Also, when we're talking he shows that he likes talking to me and he initiates conversations.