origins rated by how easily wyll could make them start saying yippee
astarion - 6/10. it would take a while, but i think he would do it sarcastically to make fun of wyll if he said it often enough. astarion will likely never yippee with the joyous abandon of a truly light heart, but i feel you could wring a semi-sincere one from him against his will
gale - 3/10. "but wait," i hear you say. "gale says silly shit all the time". correct. he says his own silly shit tho, not just any silly shit. hes a man with specific tastes, and quite frankly more of a "hurrah" sort
karlach - 10/10. she had likely yippeed several times before meeting wyll, and shes happier now more than ever. a playful woman who is actively hunting down ways to be happy is a perfect target for the yippee agenda
lae'zel - 9/10. wyll tells her its a triumphant exclamation (true) that many on faerun use as a battle cry (false). shes a curious woman and trying to be multicultural. her enemies are too busy choking on their own blood to say anything about how silly it is
shadowheart - 0/10. she is dignified and stubborn and the second she catches on to what wylls doing she makes one of her classic stank faces and resolves to never let him win. the stars will burn out before she gives wyll the satisfaction of a single yippee
(it goes without saying that wyll yippees every day of his life, but tbh i think he gets even more mileage out of a good huzzah)