The second assumption is concerned with how people perceive and evaluate a conversation. Perception is '"the process of attending to and interpreting a message'", and evaluation is the "process of judging a conversation". Someone who enters a conversation usually first observes what takes place and then decides whether he should adjust to fit in. An example would be walking into the break room at work where two other coworkers are discussing a birthday celebration for the boss, the person who walked in would evaluate what they are talking about and determine how to proceed. They would decide if they should join the conversation or acknowledge the two coworkers and leave. If they decided to join the conversation, they would determine how they should communicate based on the people they are talking to and the situation. However, the decision about accommodation is not always necessary. If two strangers meet, they may have a random small talk and simply say goodbye. Then, neither of them is likely to evaluate the conversation since they have little chance of meeting again.