Guys, Is he asking to hang out as friends or more?

So I feel a bit socially ret*rded at this point in my life because a guy suggested I play piano at a festival , overlooking the lake, and he could play the harp with me. I couldn't tell if it's just a casual way to hang out or is he testing the waters?

Basically I'm not sure what his intentions are.

Guys, Is he asking to hang out as friends or more?
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