Make Blue Magic easier to learn?

[Gannon]

...Sorry but...I don't.play blue mage and even I know that's not all there is to it,

That is all there is too it, aside from being lucky and seeing the move needed and actually learning it.

Blue mage in my linkshell one time...all he was trying to learn was headbutt, went for Quadavs because they use it so often....would not use it...not even once in 3 whole hours. Even tried the mandys...same thing...gave up and just went for something else entirely.

Mandragoras can only teach Wild Oats, and Dream Flower. Headbutt can only be learned from Quadav and they have about a 1 out 5 chance of using the TP move.
Since you are self-admittedly not a Blue Mage, this link is for your viewing pleasure: http://wiki.ffxiclopedia.org/wiki/Blue_Magic