I would never tell my friends, if they are my friends, they shouldn't care if I spend $20 or $2000 on something, but if some stranger on the street asked, I'd probably say it's fake because you never know that persons intentions behind asking.
My friends would never ask me if it's fake or not - they know how I feel about fake bags.
why the hell would i do that
i think carryign a fake is trashy