I manage to come away feeling like an idiot every time I open JIRA. I just typed out a typical internal monologue while using it, and deleted it because I'm embarrassed by it.
I think the symbol that looks like a nut with the threaded hole off centre is the "Google how to find X in JIRA" icon.
(No, not the "Tests" icon, its got the hole slightly off centre to the left. Or the "Calendar" icon, its fo the hole slightly off centre to the upper left.)
- Hover over each symbol one-by-one until tooltip shows itself (sometimes takes multiple tries); or
- Google "how to find X in JIRA"