With Mercury in Sagittarius, they may wander through several subjects before reaching the central point. When recounting an experience, they jump from one topic to another, bring in references that seem unconnected and, later on, pick up the thread again. The listener may feel lost in the side branches, while for this person it is a route of their own.
Humor lets them say direct, even painful things with a smile that makes it hard to respond. Ideas of justice and injustice come up often in their conversation, as does the need to make commitments and to demand that they be kept.
They find it hard to keep quiet about what they feel. During an argument a strong urge to set things right may arise. Clarifying what each of you considers fair helps to understand the disagreement, although they also need to recognize that their way of doing things is not the only one possible.
Their charm can make them popular at gatherings. Sometimes, because they find a story funny, they use their partner’s private information without weighing its effect. That spontaneity can hurt, even when there was no conscious intention to do so.
In a conflict they may become sarcastic. They are sensitive to what others say to them, but do not always notice that they ask for tolerance for jokes they themselves would not take as easily.