Passive Agression

I try to avoid confrontation. When somone's aruging with me, it's just easier to let them win. However, I don't want people thinking I'm a push-over, so I yell nice things like "YOU MAKE A VERY GOOD POINT!" or "THAT'S A NICE SHIRT, IS IT NEW?!" They walk away feeling like they've won, and I don't have to backdown to anybody.