You'll see a pop-up saying something like "What's that up in the sky?" and then you'll see the airship in all of its glory, flying over your town, only to stop, drop off some Goods, and disappear as quickly as he appeared. You're then given a pop-up advertising the FarmVille English Countryside, but you don't actually have to go play FarmVille to receive your Goods. Just make sure you have some room in your Goods bar the next time you play, so that this valuable air drop doesn't go to waste!
What did you think of Duke's Airship flying over your town? Would you mind receiving similar advertisements more frequently, if it meant free Goods or energy for you in the future? Let us know in the comments.