you won't gain weight as the protein ingested will store itself in your body for later use if you go above the amount your body can digest at once but don't expect to see gains in muscle. as long as you keep those saturated and trans fats out of your diet most people will keep a steady weight.
if i do not exercise and eat a lot of protein from yogurt and protein shakes would that make me gain weight? . i am 5'11 and 185 lbs