Seller acquisition And Merchant Onboarding Agency build customer relationships, and generate quality leads, door-to-door marketing remains a powerful strategy. While digital marketing continues to grow, face-to-face interaction remains one of the most effective ways to engage customers, build trust, and drive sales in competitive markets. At its best, guerrilla marketing nets you direct offline exposure via foot traffic that can be as targeted as the location you choose, as well as word of mouth buzz through people talking about and sharing your marketing on Instagram, Snapchat, blogs, etc. online.