Make “boyfriend material” a literal aspect of dating where women who are romantically interested in a man would approach him and grasp the fabric of his shirt to feel the material, signalling to him that she considers him “boyfriend material”

This is a spin on the social media prank where a man would ask a woman to feel the fabric of his shirt and tell him what material it’s made of, to which she will usually respond in a matter-of-fact way and say it’s cotton or whatnot, and then he comes in with the “boyfriend material” punchline.