Which symptom indicates that mania is noticed by others?

The indication that mania is noticed by others often ties closely to observable behaviors and activities. Increased goal-directed activity is a hallmark symptom of mania that others can readily see. This may manifest as the individual engaging in numerous tasks with heightened energy, pursuing projects, or displaying ambitious plans. Such visible activity often allows others to recognize that the person is experiencing an episode of mania, especially when the level of activity is excessive or out of character for the individual.

In contrast, the other options describe symptoms that may not be easily observable. Decreased need for social interaction and social withdrawal can be more indicative of depressive episodes, which can sometimes complicate the perception of mania. Additionally, an increased need for sleep does not align with the typical symptoms of mania, where individuals often experience a reduced need for sleep instead. Therefore, increased goal-directed activity distinctly highlights behaviors that those around the individual can witness and associate with manic episodes.