I touched a guys arm and he nervously laughed but smiled super big. Does he like me?

We've been kind of casually talking for a while now as friends in the same sport. I touched his arm to say thank you for something, and he laughed nervously but was beaming down at me and his eyes were sparkling. He gave me a fist bump after, and we left in different directions to go home.

I touched a guys arm and he nervously laughed but smiled super big. Does he like me?
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