Happy English gift & gimmick

2022/4/11 「Private English Lessons !」　　 https://www.facebook.com/NewYorkCityFeelings/videos/1526157651110967 gift A: Mary and John got married yesterday. B: Yes. I wish to give them a small gift. A: He asked me for the ten dollars that I had borrowed for him last year. B: Happy is a man gifted with a strong memory. Don't you owe anything to me? gimmick A: This hair tonic is guaranteed to grow hair eve if you're bald. B: Don't fall for that kind of gimmick.