Question about pet

How to make my pet as a thank,
I'm an archer, and use skil sneak attack,
My pet use skil that make agro, but why mob always attack me, not my pet?

 

the pet needs to generate more aggro than you to redirect the mob's attention to itself.

attacking first generates aggro, and you must attack first because pets don't start combat on their own.
let the pet attack a few times before you cast any skills.

Sneak Attack also generates 200 aggro and does not hide aggro generated by buff skills such as War Cry and Cross Fire.