Why

When I was in grade three, a new girl came to our class and nobody liked her; at least the girls didn't like her, I'm not sure about the boys. I can't remember why we didn't like her except that we made fun of her because she wrote really small. I still remember her name whereas I have trouble remembering others. She didn't stay very long, she moved again. What is extremely odd to me is that we made her departing gifts. Nobody else that moved away got departing gifts. I think I instigated the giving of the gifts. Why did we give her gifts? Why didn't we like her? And why do I still think about it and it bothers me.