Guys, I think he likes me?

So I saw my crush today and he seemed a bit nervous, he asked about my career and he was making jokes. I was with my sister and he seemed to be trying to make us laugh. He knows my sister has a boyfriend but he's friends with her. Usually they talk but this time he was trying to talk to me more which was nice.

He then said I should play piano at the festival and he would play harp with me, kind of as a joke. But I felt maybe he was testing the waters?

Guys, I think he likes me?
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