It is a communication theory which emphasizes the adjustments that people do while communicating.

The communication theory you're referring to is likely the Communication Accommodation Theory (CAT). This theory, developed by Howard Giles, suggests that individuals adjust their language, speech, and behavior to facilitate communication with others. Here are the steps to understand this theory:

1. Understand the Basic Concept: The main idea behind CAT is that people adjust their communication to optimize the interaction. This can mean aligning their speaking style, tone, or even non-verbal cues with the person they are communicating with.

2. Know the Two Types of Accommodation: Convergence and Divergence. Convergence is when individuals adapt their communication style to match the person they are communicating with. Divergence is the opposite, where individuals emphasize the differences between their communication style and others.

3. Understand the Reasons for Accommodation: People accommodate their communication for various reasons, such as to be liked, to fit in, or to establish authority. The theory suggests that our motivations for communication can greatly influence how we choose to communicate.

4. Consider the Outcomes: The theory also suggests that the way we accommodate can impact the outcomes of the interaction. For example, over-accommodating may lead to patronizing or demeaning communication, while under-accommodating may lead to misunderstandings or conflict.

5. Apply the Theory: Finally, consider how this theory applies in real-world situations. For example, in a multicultural workplace, understanding and applying CAT can help improve communication and reduce misunderstandings.