What's one random thing you've found attractive on a guy or a girl?

A good number of guys I've thought seemed cool wore wayfarer sunglasses. The coolest guys I met over a period of time wore the white rimmed ones. They were all easygoing and funny, just chill to be around. Lol it's so random, anyone elso have something like this to share? :P
What's one random thing you've found attractive on a guy or a girl?
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