When is "banter" actually bullying?

Friendly banter is fun right? But what happens when it crosses that line and is bullying in disguise? 

- 1. Think before you speak - Would it be funny if someone said the same things to you? 

- 2. Don't pick on someone's insecurities. That’s a low blow! 

- 3. Be aware whether someone is clearly not enjoying the 'banter'. If they’re not. STOP. 

- 4. Don't laugh along if you’re not finding it funny. 

- 5. Saying something is 'just banter' doesn’t mean it is. There’s a line. Don’t cross it.