An example of this phase is: After class, Jean makes a comment about the teacher to Paula. If Paula responds with her impressions of the teacher, she conveys the relationship-level message that she's interested in interacting.

Friendly Relations.

Explanation:

Friendly relations are those relations that involve the mutual dealings between two persons or nations.

In Social and Intimate Relationships, Friendly Relations is the second stage of developing relations.

In this stage, people begin to develop common interests and likes.

In the given example, Paula's response to Jean's comment about the teacher is an example of friendly relations. As they are beginning to develop common grounds of interests.

So, the correct answer is friendly relations.