How will tanking or healing help me teach a Bard?
I can count on my fingers the amount of BRD's that do Paeon's between pulls to help the 0 TP WAR. Or the ones that use Foe's (Despite not costing anything) to help the Healer because they have another Physical DPS, etc. You can also lay down basic things that may not be apparent to low levels (Dont pull before the tank, target the reds, not the oranges, use Foe's/Balad for your healer, if the tank is marking follow the numbers, dont stand with the tank, etc).

Need I go on?