Grice

• Cooperative Principle

  In conversation people follow a set of expectations to communicate effectively.
• 4 Maxims- Quantity

  Say as much as you need to.
• 4 Maxims- Quality

  Be truthful.
• 4 Maxims- Relation

  Be relevant.
• 4 Maxims- Flouting a maxim

  Creates an implicature (an implied meaning), e.g a joke, sarcasm, passjve aggression.