Inspire courage

While Obsidian has not confirmed the existence of inspire courage in NWN2, it is a class feature of the bard class which have been confirmed.

3.5 Inspire courage
This is a form of bardic music.

A bard with 3 or more ranks in a perform skill can use song or poetics to inspire courage in his allies (including himself), bolstering them against fear and improving their combat abilities. To be affected, an ally must be able to hear the bard sing. The effect lasts for as long as the ally hears the bard sing and for 5 rounds thereafter. An affected ally receives a +1 morale bonus on saving throws against charm and fear effects and a +1 morale bonus on attack and weapon damage rolls.