It’s important to note that there are more than 9 symptoms of ADHD, and symptoms can differ from person to person. But common symptoms may include fidgeting or restlessness, difficulty managing time and prioritizing tasks, impulsive behavior, difficulty focusing on one activity at a time, forgetfulness, frequently losing or misplacing items, easily distracted, impatience or seeking immediate gratification, and having a hard time focusing on a conversation. To learn more about ADHD symptoms, consider visiting Psych Central’s resource page for a more extensive list.