What is standard app lexicon?

I'm developing a user manual for an app that controls some hardware. I need to walk the user through using the app to get it set up, adjust settings, and for general use.

What is the standard app lexicon when referring to the user interacting with the app?

Here's some that come to mind...

Touch (A):

• Touch
• Tap
• Press
• Select

Screen (B):

• Screen
• Page
• App

In short, I'm trying to say:

To set this up later, _____ (A) the "Skip" button in/on top right of the _____ (B) .