The one thing that really turns me on is that little gap between the woman's chest and the bra strap. I call it "Bra Strap Gap" ... the bra strap does not lie flat against the chest, which is indicative of large breasts. I'll follow a woman around the store just to inspect her chest area. I will sometimes engage in conversation while I am secretly checking her out. If the gap is substantial, I'll try and get a date with her. That is, if she is not wearing a ring.