Employees at a Chick-fil-A branch in Lawton, Oklahoma, surprised a hearing-impaired co-worker with a rendition of Happy Birthday to remember – they did it sign language. This video was posted on May 11.We had the best time learning to sign the Happy Birthday song for our fellow team member who suffers from hearing loss, the Facebook post said. We love you, James, and we are so thankful that you are a part of our team! We look forward to celebrating many more birthdays with you!