Sometimes getting a customer to join a loyalty program is as easy as asking them. At drive-thru coffee chain 7 Brew, employees are trained to ask every customer for their phone number before they order. New guests are automatically enrolled in the chain’s loyalty program. And if they are a returning customer, the employee will be able to see their past orders and ask if they’d like the same thing again. Members also get a free coffee every 10 visits. The simple signup process has had a big impact: 92% of 7 Brew’s transactions come from known guests.