That 'accidental' touch here and there.

A slightly lingering look.

Nonchalant hints toward sexual things, and then that small silence that follows when each of you gauge the other's response.

Those subtle poses that a woman makes which expose just a little bit of cleavage, or is meant to draw attention to a certain aspect of her, while acting oblivious.

Slightly too close a proximity.

Intimations of it being 'hot' in here.

Lingering looks at other men to make it clear they're checking them out, then a look at you to see any hints of jealousy.

A small smirk which is unrelated to what's happening around us.

End game is when you drop the pretense.

Do you relate to this?