• Difficult to mix with other children.
• Not fear to real danger.
• No eye contact or little eye contact only.
• Laughing or giggling inappropriately.
• Show extreme distress without any possible reason (tantrum).
• Do not like to be cuddle up or act cuddly.
• Like to do something impulsively; always makes careless mistakes.
• Extreme physical overactivity or underactivity.

Hyperactivity Behavioral:

• Cannot play, talk or sit quietly. Often distrup others with their actions or talk.
• Very severe tantrums (hot-tempered).
• Always seem not to listen when spoken directly.
• Always been very active even during sleep.
• Difficult to take turns while playing.
• Often involved in dangerous activities.
• Always playing without caution and without considering the consequences.
• Not pay attention in school, work or other activities.
• Difficult to be hold or soothe during younger.
• Often distupts, interrupts, and act inappropriately.