So, eh, do you have a special habit you do while playing games?
Like, do you listen to music, do you watch T.V. in the back ground? Do you drink beer? Smoke? Relax in an easy chair?
I personally like to smoke cigarettes and drink beer while I play, if I have the ability to play while in the tub, I like that too. Most of the time, I just cuddle up with some Chips and a drink and get going. I sometimes listen to music, but mostly I like having the t.v. on in the back ground, it makes me feel secure.. like there are other people doing things around me.
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I lean right back in a comfy chair, one leg up on the table so I get a better angle.
All distractions are off, except for possible music as per the 'music while gaming' thread post.
Sometimes, there are chilli noodles, but only if the game is turn based or slow enough to allow me to eat. Other than that, I drink water, cool, refreshing and the lack of sugar does not get you distracted.

I usually have the T.V. on in the other room and will pause to watch it or flip channels whenever I take a food/drink/bathroom break. However, the room I play in is dark and I like to go for total concentration and immersion using headphones occassionally and 5.1 surround sound mostly.

Water or pop to drink for me. Although, it's quite funny when I play an intense game for a few hours and completely forget about the pop. By the time I remember, the fizz is all gone. :(
For the less intense games, especially any that I can play one-handed, I'm usually petting my cat at the same time, who will either be in my lap or snuggled in the empty drawer beside me.

Usually I'm playing in my room with dark curtains, completely locked out so that rest of my beloved flatmates won't disturb me. Juice and crisps are a must as I am usually playing rpgs. During the weekend, alcohol ban is off for me as I'm off work and more than often I'm in a company of couple of beers. When I'm playing on my 360 I try to put appropriate music in the background.

Umm, nothing special really... usually i'd be playing after work or before/after going to the pub. So id say lights off, thanks to the lovely backlit Logitech G11 keyboard and sound on either my surround speakers or earphones.
No food or drinks (apart from the occasional water or summin) and i dont smoke so thats pretty much it. if i do feel hungry i tend to grab some food and chuck on an invader zim or family guy while i munch, then jump back to the game when im done.

Popcorn w/garlic salt and lemonade. Door closed cause the volume is up, or headphones when the wife is asleep (down the hall, NO PC IN THE BEDROOM. My rule, not hers). No TV, radio, or music that ain't ingame. Unless it's an arcade game like Peggle.

Music, cup of tea (hundreds have gone cold and been drank anyway). Beer if I'm playing an adventure game or something slow-paced, alcohol and games like SWAT 4 do not mix and produce good results, except in terms of hilarity.

I have a fantastic time playing Team Fortress 2 with a glass of Brandy and Coke.

I always use a headset. I love the sound of them over speakers and think its more realistic sounding then speakers.

Depends on the game I am playing. I will often pause and alt-Tab to browse the net while playing to take a mental break. I will drink water, juice, coffee, tea, beer... Really what ever we happen to have that is liquid. As far as music, usually no sound or the game music. The no sound/iPod is usually when playing WoW or another game where the sound effects/music have gotten annoying due to me playing them too much.
As far as food, it can range from snacks to full meals on occasion (When I'm the only one around for the most part)

Listening to the radio and drinking coke (or coffe). That's my gaming way.

Usually I have a pop handy, the TV is on, and my wife is on her computer playing her games.
Plus I prefer games I can window, or switch to reading stuff on the net for a bit too, then go back to my game.

Drink beer, smoke, listen to music.

A glass of wine or a scotch (Only one). Usually, I use the headphones, as the computer is in the same room as the tv and the wife's usually watching something on the tube. So, I end up having the tv on in the background. I don't listen to music while gaming, other than the game music itself. I almost never eat while playing. Generally, the lights are off.