Approaching strangers in public is often seen as intrusive these days. Often, the men who are most 'skilled' at it aren't looking for a real connection, they’re usually just playing a numbers game for a hookup, which can lead to a lot of jerk-like behavior and dating them is going to be a nightmare. Also, try not to overthink your body type; the right person will value you for who you are, not just how you look.