3. When you bend over and some cleavage shows.
A vast majority of men consider your breasts the sexiest part of your body. Even when he is just talking to you, he cannot help checking out your breasts. If your cleavage peeks through your blouse when you bend forward, his eyes will definitely be glued to your chest. It’s just a natural reflex. Be careful not to be too deliberate or men may find you too promiscuous and shy away.