Eric Hawke
Dreamer
If your character's plain and straight forward, how about you make his voice even MORE plain? To the point were it's almost comical, and thus has more of a personality.
If he say, has been through a particularly challenging ordeal, instead of going on and on about his feelings, like some characters would do, he could simply think to himself "Well that will probably leave some emotional scars. Oh well..."
If he say, has been through a particularly challenging ordeal, instead of going on and on about his feelings, like some characters would do, he could simply think to himself "Well that will probably leave some emotional scars. Oh well..."