Are you? I'm a pretty good liar, I can get away with telling really big whoppers while maintaining eye contact, remembering lies for years at a time, and never getting caught. Do you lie well, and do you lie often?

No!

I don't do much lying, but I do tend to sweeten the truth.

I never lie. I work for an ISP.

Lying is bad. I must trust people to be friends with them. If I learned someone who is lying I will cut my relationship with her/him. Anyway cheating is bad also. I hate cheathers in life and in games. :D

Yep, I used to be a good liar, but then I've discovered I'm also an idiot to lie so often (with my first girlfriend, who kinda showed me the 'way'), so now I don't lie, and when I do for whatever reasons, it's absolutely obvious anyway, cause I'm nervous...

I can be quite a good liar when I put my mind to it and think out the lie beforehand, but if I try to make up a lie on the spot I'm pretty terrible at it. I rarely ever find reason to lie, though, so my ability to do so is of little consequence.

When I lie I feel really bad, so I guess that makes me a bad liar.

[Lie] No, I'm a horrible liar.
/Planescape: Torment

I always tell the truth, even when I lie...

I am good at lying. Mrs Elmodiddly thinks I love her, for example.

Just watch Jim Carrey's Liar Liar. :P

I would always tell the truth.
Rule exception: When I'm attempting to make a joke, or join in on fooling people: I can get away with lying, as long as the lie is long and sounds realistic and related to the world and my job. Obfuscating things can also make it easier to fool people.

It's the patients that I truely enjoy lying to.
Just kidding.
Maybe.

I very rarely lie, I prefer not to do it and I know i don't have a good enough memory to keep track of all the lies.
When I DO lie however I'm quite excellent at it (at least noone has ever called me out on it). I tend to use the most effective lies possible, the truth worded in such a way to make someone believe what I want them to.
In games I always play a character asclose to my personality as possible. For the first play through, on the second one I let myself go and become as despicable and unpleasant as possible, it's very cathartic.