Guys, Why would he touch my foot with his foot?

So basically at the table I stretched my legs out, bc I have longish legs so it’s easier. This guy I vaguely know put his legs where mine were so our feet were touching for ages, he didn’t move them. Then he was tapping his shoes against mine. What does this mean? Is this how guys flirt? Or does it not mean anything

Guys, Why would he touch my foot with his foot?
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