Can you tell when someone is lying?

Yes, when the person lying keeps explaining themselves eventhough I'm not asking for it. Usually, when I feel like someone's lying, I just stare at them. Try it and you'll see yourself watching a liar reveal himself/herself

It doesn't always work on everyone tho, sometimes people are just like that, they explain in advance so you wouldn't be too suspicious

Read 'Talking To Strangers' by Malcolm Gladwell - small book, big impact. It explains in there why we TV Watching people have difficultly telling when someone is lying and why - he references Friends. My view has always been - if a person's words don't match their behaviour, then they are lying with their mouths, not their actions. Ultimately, it is what a person does, not what they say that reveals who they really are. If someone says "I love you" but treats you like a piece of garbage, they don't love you. They may think that they do, but that just means they are lying to themselves also. Actions, not words, can be trusted. This rule will set you up for life. Be merciful though, because unless you have never lied in your existence to anyone, then you cannot be judge and jury to others who you catch lying. Anyway, READ THE BOOK, you won't regret it!

If they do these 5 things, then I could tell.

1. They touch their face, mouth or throat. This subconscious body language may indicate that someone is lying to you.

2. They repeat themselves.

3. They pause before answering.

4. They look toward the door.

5. They don't blink.