I can see several ways. for example peer-pressure recommendations. Look, you and Jacky are in town, both of you are close to Margo's Restaurant, you should me

I can see several ways. for example peer-pressure recommendations. Look, you and Jacky are in town, both of you are close to Margo's Restaurant, you should meet up there. Here is a 5% discount. or Both Jacky and Margo are going on this weekend to Ulaanbaatar for a fancy snack, flying Fred Flintstone airlines. They have great rates this weekend and you are just sitting on your couch watching reruns. Why not get a flight on Fred Flintstone airlines (here is the link), you might even sit next to one of them!