What type of social life can someone expect in Bulgaria?

"Expats, retirees and digital nomads living in Bulgaria typically have an active social life. They often join local clubs and organizations, attend cultural events, and make friends with other expats, retirees and digital nomads. They also often take advantage of the many outdoor activities available in Bulgaria, such as hiking, skiing, and swimming. Additionally, they often take part in the vibrant nightlife of the larger cities, such as Sofia and Plovdiv," remarked another expat who made the move to Bulgaria.