How can you tell if someone is lying to you on Facebook?
Usually, if they post something that seems ridiculous... or self serving. You can probably assume it to be a lie. Most people like to make themselves out to be better than they actually are.
That depends on what they said. It's pretty hard to tell if someone's lying on the internet.
they are typing
if they take a while to reply they may be thinking of an excuse and if what they say seems rediculas its a lie and the more excuses like that yu can think of to prove to yurself its a lie the more likely it is to be a lie but sometimes its not easy.