Make sure the child knows you are his friend and you are there to help him. Treat him with respect. Never belittle him in front of his peers. Both he and the other children know that he stands out, and if the teacher belittles the child, then the rest of the children will see that as permission from the teacher to belittle the child as well.
Children can be cruel.
Students with attention deficit disorder can experience many difficulties in the social area, especially with peer relationships. ADD ADHD students tend to play better with younger or older children when their roles are clearly defined. These attention deficit students tend to repeat self-defeating social behavior patterns and not learn from experience. Conversationally, they may ramble and say embarrassing things to peers. Areas and time-periods with less structure and less supervision, such as the playground and class parties, can be a problem.