1. "You're so cute." Men dont' like to be called cute because they know that' how women describe babies, kittens and anything non-threatening.
2. "But I love you anyway." Guys don't like it when you tack this one on to the end of a criticism... it doesn't soften the blow, so don't bother.
3. "You're amazing." Women like to say it when guys do something simple like fix a leaky faucet. But guys think it's annoying when you're SHOCKED they can actually do something.
4. "It's the thought that counts" of "Thanks for trying." People say it when they open a gift they don't like. But it shoots down a guy's efforts, and it's like a slap in the face. It also makes a guy not want to get you things in the first place.