Potty training! Any advice?

Me

The last 3 days my son will tell me "pee" or "poop" if he goes in his diaper. He also immediately wants changed. So yesterday I went out and bought pull ups and a training potty. I have everything all set up and I introduced it last night. He seemed to like flushing it but doesn't quite understand that he needs to go in it. I'm not trying to rush the process just wondering if you mama's have any advice or tips 🙂