I'm not liar... I never lie. But I like make people buy into a thing and then said : haha it was a joke, it's not real. People said I'm always 100% beleivable and there's absolutly no signs of lie. That's why they always bite. It's not that I'm used to. It's just that I have a great control on my reactions (well, when cooking doesn't count!).. It's more of personal control than an universal sign. That's why the lie detector is a very bad tool. And that's why trying to figure out if someone is lying is even worst (or you'd never get scammed!).