How to start potty training a 2 year old

Stephanie

I think I'm going to start soon but I got in my head that I want to do underwear and pulls up for naps and bedtime and out and about in the car.

So I tried in the morning time to take off her diaper an let her be just in her pants and shes has a potty chair in the bathroom and she know that she goes pee pee in it but she will go in there and then she will sit but then soon as she stands up or walks out she pees in her pants.

I'm just confused on how to get her to stay on the potty longer and if I should wait or try her on the big potty.