If at first you don't see iPhone 6s quick actions, launch the app and try again!
Quick actions are the name for the options that pop up when you 3D Touch an app icon on the iPhone 6s and iPhone 6s Plus. When there are no quick actions for an app, it gives you a little "nope" vibration to let you know. But, not all quick actions load until you launch the app. So, if you're not seeing them in apps you think should have them, try launching the app and trying again!
Full story from the iMore Blog...