"Go out" is a phrasal verb that means to leave one's home or usual place in order to participate in a social activity. However, there are a number of synonyms that can be used in its place. For example, one might say they are "heading out," "stepping out," or "venturing out" for the night. Alternately, they might "hit the town," "get out and about," or "step into the wild". When it comes to more formal or structured events, one might "attend" or "participate" in them, while more casual outings might be referred to as "hanging out," "chilling," or "kicking it." No matter which term you choose, it's clear that going out is an important way to stay connected with friends and the world around you.