In a particular study conducted by a Mid-Western University it was discovered that men ogle or objectify women to evaluate what kind of person you are. What this means is that, when they meet you for the first time they spend more time looking at your body than your face, specifically at your waist, hips and breasts.
So if you have an hour glass shape for example they would rate your personality on this. Giving you higher rating on having a better personality than those with other body types. Not very logical, but hey, now we know why some men may look at your breasts to figure out how nice you are.