In the context of the five systems of rules involved in language, this scenario indicates that Peter has knowledge of Pragmatics.
<u>Explanation:</u>
Pragmatic rules can be explained as the social language skills that are required to interact in our daily conversations. This comprises what is said, how is said and also the non-verbal communication. Some of the examples of pragmatic language are:
Requesting for information
Conversational skills
Asking questions
Asking for clarification
Responding/offering to expressions of affection aptly
Offering or asking help
Pragmatic skills are important for communicating personal thoughts, feelings and ideas.