To encourage users to sign up through tablet kiosks, consider the following strategies: 1. Incentives: Offer incentives such as discounts, freebies, or exclusive content for signing up. 2. Clear Call-to-Action: Make sure the call-to-action is clear and compelling. Use phrases like "Join our VIP list" or "Get exclusive offers." 3. Visual Appeal: Use eye-catching designs and animations to draw attention to the kiosk. 4. Staff Assistance: Train your staff to guide customers through the sign-up process if needed.