Mercury square Sun transit increases mental activity and communications, but also adds friction and tension to these areas. Thinking can be nervous or rushed, which may lead to slips in conversations, not saying exactly what you mean. This, in turn, can lead to others getting the wrong idea, an increased risk of arguments, or simply unresolved matters.
Not the best time to ask for a raise from the boss, or to make critical decisions. Avoid stirring up trouble or trying to humor people, as you may offend. Still, you may have to deal with more phone calls and correspondence than usual, which could be annoying, and routine trips around town could cause some irritation.