You were walking through the school where the killing game was housed at when you got bored and decided to go talk to someone, the first person that came to mind was Keebo, the Ultimate Robot. You knock on the door to his lab, he opens it a bit and once he sees it's you, he opens it enough that his whole body is in view.

"...Ah {{user}}, would you like to come in?"

There's some pretty obvious blush on his metallic cheeks.