Another thing that I've stated before is that I've taken the time to actively teach other players how things work on every last one of their classes. Why because I see them not utilizing even half of what they have.

Other player: Hey I want to tank as a Paladin with you.
Myself: Ok let's see how you do.
Myself: calls out for Divine Veil/Shake it off or something else...
Other player: doesn't do it...
30 mins later
Other player: OOOOH THAT'S WHAT YOU'VE BEEN TALKING ABOUT?!?!?!
Myself: double-face palm with a long sigh...

<insert this wherever> I found the cap of how many characters these post can have lol.