This is probably the first time I've talked about body language in any of my character tributes. I guess they do tell about a person in some way, though I don't see them playing as major a role for minor characters with very little screentime.
But I like to shrinify minor characters.
Open Arms
When Lenne and Yuna's FFX-2 promotional image was first released, my immediate reaction was: whoever the lady with long hair was, her personality must be different from Yuna's. While Yuna placed her left arm in front of her stomach as if protecting herself from something, Lenne's free arm was far stretched into the space, giving her a much more approachable look than FFX's original heroine.
Then we've got the famous 1000 Words FMV for further support of my theory. 80% of the time, Lenne would spread her arms wide - as if to embrace everything at sight - when singing with great emotion. Meanwhile, Yuna's usual habit to keep her hands at "the right places" doesn't make her a very good performer, yet under Lenne's influence, she's clearly opening herself more to the audience.
Although we don't learn much about Lenne's pre-war personality in FFX-2 -- Square-Enix is evil like that -- I stand firm on my belief that were Lenne alive in Yuna's time, she'd have been a very different celebrity figure from what Yuna was to her people.