كلمات In My Head

I can't tell when I'm talking to you If you're really saying anything Can't you say nothing Sometimes when you talk What you have to say Is better left unsaid Is better left in your head I hurt you Because I don't want to hurt myself When I want to And you're right there, and you're uptight Lately everything you say Sounds like everything you say I know what you're talking about But I don't understand a word you say