How do I design a user-friendly popup?

On Shopify, the most effective popups are exit-intent, welcome, promotional, cart recovery, email capture, and social proof popups. Exit-intent popups help catch visitors just before they leave, while welcome popups greet newcomers with offers. You can use promotional and email popups to boost sales and grow your list. Cart recovery popups remind shoppers of items they’ve left behind, and social proof builds trust through real-time reviews or recent purchases.