According to YourTango, here are some phrases that men love to hear:

"You look great." -- This is an especially good compliment if he's been going to the gym. C'mon ... Why do you think he's doing all that working out?

"That woman just checked you out." -- Yes, this helps his self-confidence. But it also shows that you're confident enough to know that he won't be lured away.

"You're right." -- When he is right, it's nice to tell him, especially if you were arguing. Sure, it might make you feel a little sheepish, but it will make him feel good and show that you're reasonable.

"Will you help me unscrew this?" -- Men like to feel manly. Helping