If it's on a console, then I'll be in my room, seated on my bed (I'm in a pretty small room you see, no chairs in there!). I normally have a drink beside me but I don't tend to eat when I'm playing - not because I'm worried about the controller, more because of the annoyance of having to pause, eat, unpause, and so on.

If it's on a handheld, I never play games outside of the house (unless it's masked by it being on an iPad) so I generally play those games either in my room or downstairs in the living room, with the television on in the background.

If it's on a PC, well, the games I have on the laptop is The Sims 3 and emulations, and that's normally in the living room. Again, drink beside me.

If it's on the iPad, I can play it anywhere, because from an outside perspective, I could be reading the news on it for all they know, so I don't feel embarrassed that I'm playing Phoenix Wright or some other game!