The current version of Watch OS has it's positives and negatives, I wanted to start to write up a few how to's for the most common ones that I thought were worth sharing.
First off how to arrange your apps, you can do it on the watch by long pressing (as with iPhone/iPad) but it's a nightmare experience. The best way to do this is to fire up the Apple Watch companion app on your iOS device then at the top you have 'App Layout'. If you click on this you get a view of the app layout on your watch.
You can now drag around on the bigger screen, it's still has some problems in terms of how the apps arrange themselves but it's a lot better of an experience.