<human>:  How do I potty train my 4 year old?
<bot>: It is best to make potty training for your 4 year old a positive and rewards-based experience. Start by talking to them about the process and explaining the end goal. Establish a regular schedule for trips to the bathroom, and encourage them to use the potty at certain times, such as after meals and naps. Provide rewards or praise when they use the potty correctly, and explain the importance of not making messes in the house. Be sure to be patient and consistent, and your 4 year old should start to get the hang of it soon.