He brought his feet to the very edge of the cushions, wanting to pull his knees to his chest but at the same time not wanting to get Cindy's couch dirty with his shoes. So he settled for having his feet on the edge of the cushions, his knees somewhere above them, and his arms looped around the knees.
Now that he thought about it, maybe the other demon was trying to make himself look so good compared to Red because he thought of the younger demon as something to fear? No, that was ridiculous. Ghirahim acted way too conceited for that idea to be the truth. Maybe he just wanted the human's attention all to himself, without having to deal with a little 'bother' like him. Yeah, that sounded more reasonable.