That is a good question, Popcornbird, because I have seen a change in the trend as I have gotten older. When I was younger people all seemed to open gifts right away that was just how it was done. However, I have noticed in the past 10 years or so the trend has become to do as Jamie has suggested, and that is ask the person if they would like you to open the present now. I like that idea. It takes the awkwardness out of the situation (for instance I am always uncomfortable when people open presents in front of me), and they can just enjoy each other's company.