Bullying

or coercion to abuse, intimidate or aggressively dominate others.
Bully is a person who uses strength or influence to harm or intimidate those who are weaker
Or
a person, that do bullying

of friends and popular with the opposite sex
Good-looking and fashionable
Maybe been bullied themselves

or religion
new at school
overweight
quiet or shy
2. Mental condition:
easily distraught emotionally
lack of social problem-solving skills

or damages their possessions. Stealing, shoving, hitting, fighting, and destroying property all are types of physical bullying.  In physical bullying the main weapon the bully uses is their body.
Verbal This is any bullying that is done by speaking. Calling names, spreading rumors, threatening somebody, and making fun of others are all forms of verbal bullying. Verbal bullying is one of the most common types of bullying. In verbal bullying the main weapon the bully uses is their voice.
Relational This is any bullying that is done with the intent to hurt somebody’s reputation or social standing.
Cyber-bullying This is any bullying that happens over any technological device. This includes email, instant messaging, social networking sites, text messages, and cell phones.

physical or verbal fights with others
Get sent to the principal’s office
Are quick to blame others
Will not accept responsibility for you actions
Your friends who bully others
Need to win or be best at everything
You are a bully

to the bully
 Show no reaction
Confront the bully