What does that mean if the guy you like can't sit still like walking or jumping or moving around you when you are in the room he's also in?

Pretty Much, He's Just Really Nervous About You Being In His Room. Especially If This Guy Is Self Conscious, He Will Constantly Be Looking Around The Room To See If There Is Anything Out Of Place That Could Potentially Embarrass Him. If Anything, Just Show Him How Relaxed You Are And Assure Him That Your Comfortable And Eventually He'll Get Comfortable Too.