Grices Maxims:

Cooperative principal: people want to cooperate when they exchange meaning. Coordination regulated by means of cooperation.

• Quality maxim, telling the truth. 
• Quantity maximum, giving information with minimum effort. 
• Relation maxim, be relevant and act accordingly. 
• Manner maxim, be clear and not obscure. 

Applying maxims:

• Violate them with being noticed - lying. 
• Violate them deliberately - flouting. 
• Refrain from cooperation - opting out. 

Brown and Levinson Face Theory:

Explains how and why we're polite to each other. 

-Linguistic and social identity = face. 

2 faces, positive (feeling loved and appreciated) and negative (right not to be imposed on). 

• 1st strategy, bold on record. Do nothing to minimise threat to face. 
• 2nd strategy, positive politeness, appreciate and love the person we're communicating with. Politeness markers and friendly behaviour. You appeal to the positive face. 
• Negative face appeal. Apologise a lot, politeness markers, use negative politeness. 
• Off record indirect strategy ~> hints (gestures, laughing) express what we want to communicate, get someone to do your work for you.