Do's and Dont's of Dialogue

Dialogue is a tool used to help sell your story. It helps develop characters and move the story along.
Here are some do's and dont's of dialogue:

DO:                                                                          DON'T:

Break the characters up                                             Make everyone sound alike

Echo emotion, use lingo                                             Monologue

Give complete info                                                     Recycle info         
Use grammar shortcuts                                              Use too much!