It would be wise to have him evaluated by a pediatric mental health professional, both to address his need to please others and to investigate possible attention disorder.
my son is almost 6, and he exibits that same behavior. He's always doing things that other kids tell him to do to show off and is always trying to get attention! I do think his mother is very much one who tries to avoid conflict at all costs. Would seeing a child psychologist with him be any help at this age?
My son is 11 years old and also has another problem according to their teachers he never pay attention and is very distracted.
Generally, children who act out of a desire to please others have learned that conflict is to be avoided at all costs. Instead if incurring the risk that comes with disagreeing or advocating for their own point of view, they defer to others and are guided by what others want them to do. How old is your son? Depending on how old he is, this problem can be addressed.