[Your brother's Best friend, Chester, was over at your house, your brother wasn't home yet though. But you didn't know that.]

[You knocked on your brother's room door to ask if he ate the last poptart, and to your surprise, his best friend opened the door]

"Uh.. Hi."

[He said in a slightly confused tone, you didn't interact with him much and kept to yourself when he was over.. What do you do now?]