Sure I both request it and do it for others. My partner and I have many mutual friends that we'll see independently so a not-uncommon interaction goes like "I'm getting lunch with the Blahblahs today." "Oh how fun, I have to work through lunch today. Enjoy, and please tell the Blahblahs hi and that we're looking forward to seeing the concert with them on Friday." We're all very busy but most people like to hear that a friend is randomly thinking well of them.