I went to a Starbucks drive-thru this afternoon. I tried to tap to pay, but you have to actually touch the screen to select a tip amount or to decline a tip all together. I don't want to touch those screens thank you very much.
@Anemone i keep a box of fold top sandwich bags in the car to use as a glove in this situation.
@Anemone I use the app to order ahead and pay, then all you're touching your order! It's so much faster too!