I constantly get told what great teeth I have. I guess maybe it's not THAT weird but why don't you just say I have a pretty smile instead? I feel like by someone pointing out my teeth specifically they're trying to overlook the fact that my smile/rest of my face isn't so great. Hum, who knows, I'm weird.
I also get told a lot that I have really great skin. I just want to be like "hi friends, it's called makeup!"