How do I know if I'm holding the tablet in portrait or landscape mode?
The article outlines the distinctions between portrait and landscape modes.
Holding the tablet upright, with the shorter edges at the top and bottom, puts it in portrait mode. Turning it sideways, so the longer edges are at the top and bottom, switches it to landscape mode.
Below is example of what the tablet looks like in portrait mode and landscape mode.
1. Portrait Mode.
2. Landscape Mode.