Yes, it is table dependent, but if I have been sitting at a table for a few orbits, I know the players well enough to know when/if this will work. Honestly, it usually does. If I play my hand like AA/KK or even AK, I get basically the same result as if I actually have them, but I don't get wedded to my hand and it's pretty simple to fold.
The beauty of not looking is that sometimes, when you are played back at, you can look at your hand and you've actually slammed the flop, which they never believe (because they put you on an over pair or AK). If you haven't, just fold and they'll think you had AK. I don't recommend this for everyone, but it works for me almost every time. I also realize there are a lot of nits on 2+2 who would not do this in a million years, but I'm not one of them (and I'm actually a tight player by most standards).
If you sit at a table for two hours w/o playing a hand, though, don't be surprised when your "playable" hand is cracked by 52