Ganging around typically refers to spending time with a group of friends or engaging in aimless activities. Some antonyms for this phrase include being productive, focusing on serious work, or engaging in solitary activities. Instead of ganging around, one could concentrate on individual pursuits such as reading, writing, or studying. Another option is to spend time outdoors, going for a walk or jog, hiking, or biking. Volunteering, working on personal projects, or taking a class are also great alternatives. Ultimately, the best antonym for ganging around depends on personal preferences and priorities.