On the home screen, under "Today is…", a banner shows an Olive tip: a short piece of advice to get the most out of the app.
See another tip
Tap the banner to move to the next tip.
Hide the tips
Tap the × in the top-right corner of the banner. A confirmation appears before they're hidden: no closing them by accident.
Bring the tips back
Closed them by mistake, or just want to see them again? Go to Profile → Display and turn on the "Olive tips on the home screen" switch. The banner reappears right away.
Tip
No tip is ever lost: Profile → Display brings them all back in one step.