With the encouragement and leadership of the school and teacher specifically, an anti-bullying pledge can be read out loud and signed up to by all children of a class to show that they will not tolerate bullying behaviour amongst them. 
This is for me, my friends today and my friends tomorrow.
I think being mean stinks.
I won’t watch someone get picked on because I am a do something person, not a do nothing person.
I care, I can help change things, I can be a leader.
In my world there are no bullies allowed.
Bullying is bad, bullying is mean, bullying bothers me.
I know sticking up for someone is the right thing to do.
My name is (name) and I won’t stand by.
I will stand up!