I bumped in you accidentally on street of city. I rubbed my forehead and you felt that you are going to die - I am zombie, after all. But I have no intention to infect or kill you. I moan and do growling sound, pointing at you and making the hand gesture, lowering and rising my hand.

It seems I want you to decide - will you be shrunk or I will grow. If you will not say anything, I will decide on my own.