Two girls sit in a bus stop and begin to tease a younger girl. As they throw cruel taunts about her audition for a school play, tell her she needs makeup and ask if she has any friends that "aren't imaginary", passers by come to the victim's defence.
Set up as a social experiment, the footage was created by US entertainment network UPtv and captures a trio of actors and the impressive responses from bystanders.
Reactions from strangers vary with one telling the bullies to "Quit messing with her" and another saying, "This is how you bring people's self-esteem down".
Others attempt to draw the victim away from the situation as one woman offers to sit with the girl on the bus while a man calls her over to play his harmonica for her.
