Used when someone does usual or relaxing activities outside their home. She's just out and about, probably at the local market or café.
Pro Tip 2/3
Social Reemergence
Implies a return to social activity after a period of absence, often due to illness or being busy. Now that his exams are over, he's out and about with friends.
Pro Tip 3/3
Not Housebound
Suggests someone is not confined at home, typically because they are feeling better or no longer busy. Grandma's out and about again after her knee surgery.