To thrive as a Flea Market Vendor, you need strong salesmanship, negotiation abilities, basic accounting, and inventory management skills, along with knowledge of product sourcing and pricing. Familiarity with point-of-sale (POS) systems, mobile payment apps, and online selling platforms is often beneficial. Excellent customer service, flexibility, and interpersonal communication are key soft skills in this role. These competencies are crucial for attracting customers, building loyalty, and effectively managing the day-to-day operations at a dynamic, fast-paced marketplace.