People lie because they need to do that just for their sake. They need to lie because there are things that other people don't deserve to know. Yeah, all of us deserve to know everything, most of us hate people keeping secrets from us, but there are times that we need to lie just because we don't want them to be hurt. We don't want other people to know the truth because we know that that would be painful for them to bear. Others lie because it's just their trip. They lie because it's their way to make fun of other people.