AT&T is expanding its retail presence in Miami. Just in time for the holidays, the company recently opened a spacious 5,800-plus square-foot store at the Brickell City Centre. The store design engages shoppers and encourages them to explore and interact with the latest products and services. Customers can check out solutions, devices and accessories across three unique zones in the store: Connected Experience Zone: “lifestyle vignettes” show how you can use products every day. This zone highlights music, home security, entertainment and more. Community Zone: visitors can shop and play at interactive “community tables.” This section of the store displays…