Offer valid for one free Shake with any purchase per sender and per receiver when filling out and sending a form through johnnyrockets.com/sendasmile from 5/1/24 – 5/31/24. Free Shake offer will be sent via email within 48 hours after submitting a form from johnnyrockets.com/sendasmile. Free Shake offer expires 14 days after receiving the offer. Free Shake valid in-store only with any purchase at participating locations only. Not valid for online orders or through third-party delivery. Offer not valid on Craig's Vegan Shakes. Must present email in-store with the unique offer code to redeem offer. Sender is automatically opted-in to receive emails from Johnny Rockets. One free Shake offer per transaction. Cannot be combined with other discounts, offers, or coupons. Menu offerings and pricing vary by location. Ask store associate for more details.