Apple Watch - Other Features Including Music

I am still enjoying my experience with the Apple Watch.  It is fascinating to be working on school work when a student phones me on the iPhone.  The iPhone happened to be in another room, but the phone rang on my Watch and the MacBook.  I answered on the MacBook, but could have just as easily used the Watch.

I noticed that when I selected music, that the music played from the iPhone.  With a little more investigation, I realized that I could load music on the Watch and play it from the Watch.  Will explore that more after I get final course grades submitted for this semester.

I noticed Air Play icon but it is grayed out. The  information in the 9-5 column below provides a very good review of the Watch features.  I suspect new OS features might make it have more meaning.  

http://9to5mac.com/2015/09/21/watchos-2-apple-watch-feature-walkthrough/ 

Paying with Apple Watch

I live in a small town, however, Apple Pay is beginning to emerge finally!  What that means is that I had to learn how to pay with my Apple watch.  I thought that since my watch mirrors my iPhone - that the credit cards would appear, but that was not so.  I had to select Apple Watch Wallet & Apple Pay on my iPhone and add each credit card.  I also had to enter the security code for each card when adding it.  To use the watch to pay, all you have to do is double-click the side button of the watch and then select the card you want to use.  Just like Wallet on the phone, you tap or swipe the card.  At any rate, I am ready to use the Apple Watch to pay the next time there is an opportunity.