It would for you get Minor Auras at starting at level 1. The Minor Auras grant Cha mod to the aura. Select Motivate Intelligence which affects all Int checks. So if you have a 18 Charisma when you activate that aura you gain +4 to all of your Int skill checks including Truespeak. So for the know-it-all Truenamers can pull off two more utterences as well as increasing knowledge checks for Knowledge Devotion.