1 and 2 are obvious. He's got a fricking Chelsea smile carved into his face. but the fangirl squeal thing is because he's actually real, which means the others are too, and I'd open the window so that way I can throw something at him while I yell at him to back the fuck off.
i'd put a pillow under some covers to look like a body slip out of bed then hide beside the window until after he came through and discovered the lie. then i'd grab his knife and force him against a wall "Hi Jeffrey, ive been waiting for you. lets put your little toy away though shall we?" i say laughing crazily before letting him go
*stares at him* me: uhh hi ... nice smile u got... ( i would be standing there woith the wtf face like a total idiot i wouldnt run either cause i know i dont have a chance of ecaping so ill give up just like that)