Most Helpful Guys
If he is friends with her then he feel comfortable enough around her not to have to dress up. If he facetimed from his bedroom maybe he was changing or hanging out. Sure guys can facetime with other guys without a shirt, especially here in Florida many guys are topless because it's hot outside.
Maybe it's just too hot for a shirt?
Possibly he's trying to show off, but I rarely wear shirts at home unless i'm planning on leaving the house, think i'd put something on if I was gonna facetime someone nevertheless
Most Helpful Girl
He just sounds comfortable.