Visual cues tend to help those with speech delays. Create a potty chart, using a graphic you can find online. I think it's called a behavior chart. So, you get a picture of a potty, a child eating by himself, a child who puts his toys away, and a child who brushes his teeth and goes to bed, etc. As your child can accomplish each of these tasks, he earns a gold star. You can also try adding sign language to your program and see if that helps his communication skills. Of course, as you are signing, you are speaking so that he hears the sounds. Later, try to get him to move his mouth. With my second speech delayed child, we learned to get her talking by first making loud noises, then singing, and, of course, getting a speech therapist early into the program. Also, in the beginning stages, I had to be very in tune with the time factor until I could turn second child onto the timer. I was the timer in the early stages of training. It was hectic, but seemed to help. When he wakes, he goes potty. After breakfast, he goes potty. You point it out. Then, gradually start asking, "Do you need potty?" He should pause and be able to answer yes or no. Then, say, "well, why not try anyway." That seemed to work with my second child.