Human: How can I tell if my child is developing normally? Assistant: 
The best way to tell if your child is developing normally is by paying attention to their physical and mental growth. Observe them for any changes in their behavior, such as an increased interest in activities they previously didn't enjoy or a greater ability to express themselves verbally. You should also ask questions about how they are doing at school, if they seem happy and healthy, and if they have friends. Additionally, it's important to keep track of their milestones and compare them with the average age range for children their age.