Hell play with the buttons on his jacket, buttoning and..

He'll play with the buttons on his jacket, buttoning and unbuttoning it (if he is interested)

It's a displacement activity (fiddling) because you've made him a little nervous, plus an unconscious desire to remove his clothes.



The next stage is to push the jacket open and hold it there by putting his hands on his hips.



If he takes it off completely, he's imagining his shoes under your bed.