Whats the first thing that catches your eye about someone?

I'm interested to know what the first thing you tend to look for on someone. Or something that someone has to have for you to be interested in them.

Go wild! Anything and everything.

Personally the first thing I look for in a guy is height and shoulders... if he's got those goods then he's in good shape for some attention haha.
Whats the first thing that catches your eye about someone?
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