Amazon: a $5 Tip to Delivery Drivers at No Cost to the Customer when You Say "Alexa, Thank My Driver

1) How can I thank my driver?
You can say “Alexa, thank my driver” using your Alexa-enabled device or Alexa app on your smartphone. You can also search for 'thank my driver' on Amazon (web or app) to thank the driver of your most recent delivery, made within the last 14 days.

Note, if needed, install Amazon Alexa App [iOS or Android].