Now lets use the I statements see the difference.
You always take my book.You never ask permission .
I would like you to ask permission before you take my book.
You are mean and nasty for doing this.
I feel sorry if you think I am mean or nasty.
Can you stop acting like a baby.
I would like you to stop acting like a baby.
You never give me a chance.
I feel like I never get a chance.
When we attack like using the (you) they will defend and probably end up fighting.
When you use the (I) you help them understand how you feel and thats your right.. try it ..it works…