People in general as a rule need to learn to be less judgmental and more helpful. And being helpful can mean to wait to be asked and not butt in. It also means to hold your tongue and teach your children to do the same.
In a school environment whether a child is of special needs or just shy and awkward sometimes a teacher or Rebbe should assign a child a “special friend” to be their guardian angel and assist them in their adjustment periods. This friend can last the year, or be friend of the month or whatever the teacher decides to do for that particular class. The mechanech does not have to announce it in public but can speak to another student in private and tell them s/he has a special mitzvah assignment for them that is private just between the two of them and they musn’t divulge the secret to anyone but Hashem will definitely reward the child for the mitzvah. And that a special note will be sent home to the other child’s parent that “your child has a new friend his/her name is “x”.
Who do you think will gain more from this experience in the end?