Home How To Instantly Be Left Off His List Of "Potential Girlfriends" After Meeting Him For The First Time 8 ways to make a bad first impression on a man 6. Having bad posture even though you’re slender and beautiful “She has a model’s looks and style, but it’s a shame that she stands hunched over.” It seems that many women do themselves no favors by having bad posture. 1 2 3 4 5 6 7 8