When one is "being with it," they are typically described as being in tune or synced with their surroundings. Synonyms for this phrase may include being present, mindful, aware, alert, focused, and engaged. It can also signify being up-to-date or well-informed on a particular topic or trend. Other similar phrases may include being in the zone, in the know, or in the moment. The ability to be "with it" can greatly impact one's performance in various areas, such as work, sports, and social situations. It requires a level of attentiveness and adaptability that can lead to greater success and satisfaction in life.