Get a gift card for using Android Pay on your Nexus this holiday season
Unsurprisingly, the promotion is called "Tap with Nexus." The idea is simple from there: if you use your Nexus device to make a purchase any time from now until December 31st and you could get a $20 Best Buy gift card. You'll need either a Nexus 4, Nexus 5, Nexus 6, Nexus 7, Nexus 9, Nexus 5X, or Nexus 6P running Android KitKat 4.4 and higher to use Android Pay. And, of course, you'll have to be in the United States as well, since Android Pay doesn't exist in any other countries yet.
This is limited to one gift card per account, and it appears as though there is some sort of limit on the number of Best Buy gift cards that will be given out, so the promotion may not last until New Year's Eve as scheduled. It will be an electronic gift card, not a physical gift card as well. Google doesn't want to pay shipping costs.
So, you may want to run out to your local pharmacy soon to get in on the deal.