If his leg is touching mine?

I've known this guy for a long time and I had a crush on him for ages. one day he sat next to me on a table with a joint chair, his leg touched mine so I moved it away, then 5 minutes later he was touching me again so I moved again then it happened again. I didn't think I was his type.

And another time at a party we were running around with other people and he just randomly picked/lifted me up.

Does he like me? Or was he being aggressive and should I b worried?
If his leg is touching mine?
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