How do I know if my sister is lieing to me?

Really, you need to let her live her life and let your parents deal with it. The only reason she would lie to you is because she doesn’t feel like you need to know. If you go snooping around, you’ll lose her trust for sure.. my older brother does things I don’t approve of, but he’s a big boy so I stay out of it.

Well heres what I know about lieing. When people are lying they are always defensive. And goes with any suggestion out of the topic they’re lieing about. They also may involuntarily put something between you and the other person like a rock or a book, without thinking! Well hoped this helped!

you need to stop concerntrating on her life and concertrate on your own life sisters are ment to stick together not me against each other maybe if you stop getting at her she might come up and talk to you (if she feels your going to shout and tell the parents she’s never going to tell you anything) and dont go through her stuff thats just wrong and crule and you wouldnt like it if she went though your stuff so please dont do it, it would be the worsed thing you could do.