It's not just women who seek reassurances about their appearance. If your man asks how he looks when he's on his way out the door to something important, "Don't ever say anything negative, especially about things he can't change," says Kirshenbaum. If he has on the wrong shoes or would look better in a different tie, offer that advice. If a growing gut is the issue, wait for a quiet time to have a frank discussion. It's all about how you word things: If he needs to lose weight, suggest doing more physical activities together. If his thinning hair is turning into a comb-over, tell him how trendy a bald head is these days. "And be sure to let him know you still love and desire him," adds Kirshenbaum.