HOW TO KNOW IF SOMEONES LYING

How to know whose lying

1. Have info of that person, like if he lies a lot or what ever
2. See any signs of lies, that means for example, my brother I look at him and I say "Your lying" and he says "No I'm not" and I say "Your smiling, and then he smiles and thats basically how I know he's lying
3. Check for proof, you must always check for proof, like when my dad asked if my brother drank his milk he said yes but when I was going to get my milk I saw that the milk jug was still full meaning he lied about drinking his milk
4. See how he says the lie, if his reputation was bad and his voice is high or too low, and  the proof is the total opposite of what he's saying then check his voice, when ever my brother says a funnny lie his voice goes high and sounds fake, in a real lie I just know he's lying because I'm good at this stuff, well not really.
5. Heres an example! Once when we (My dad, mom, sister, and brother) were watching Law and Order, in this episode a womens parents were dead and was killed by someone, and when that women was running over to there bodies, she cried, and I might sound crazy but that cry sounded a little fake, so I told my mom that she did it and then she denied it because she was there daughter so she wouldn't do it, so then I made a bet with my mom and then I won, yes I won and If I won my mom had to bring me to the Lego shop, but if she won I had to learn how too wash dishes, but I won! (But she didn't bring me to the Lego shop though) The daughter had killed her own parent! And so you need to know whos telling the truth or not or be blinded by the lies. Thanks for reading! :)