Like when your 1 year old boy stops and gets quiet, so you know they are going in their diaper. Only to hear a huge explosion and they look up at you and say "poop!" and points at their diaper.
HAhahaaa! Yeah buddy. I heard it and I smell it. Let's get that taken care of.
Honestly, I think I'll be able to potty train this one earlier then even my daughter. She was VERY easy to train at 2 and 3 months. But he seems VERY aware of his habits, and even goes into the bathroom to poop in his diaper sometimes.