Talking to the [npc=34523] gives 5 options:
- Who sent you!
- <Punch him in the mouth.>
- <Kick him in his big fat face.>
- <Offer food.>
- <Tickle Time!>
Obviously, the first option gives you only a <Snort> or "I say nothing"
The second and third options, being brutal, at first only meet resistance as well, but after a time or a certain combination of beatings and kicks (or just random, couldn't figure that out yet) will get the quilboar to say
You waste your strength! Tortusk train us warriors never to talk.
Oh - I've said too much!
which completes the objective.
However, you can also choose the fourth and fifth option, which will get the quilboar to blab immediately:
Mnn, <snort> why you cook this meat? Tortusk tells us meat taste best when stolen and raw.
Haha - <snort> ha - heee! <snort> Haha no stop haha <SNORT> <wheeze> Hee hee! Battlemaster Tortusk never prepared us for this!
each followed by "Oh - I've said too much!" of course.
The brutal options will buff you with [spell=65629], increasing your attack power and magical damage done by 8 for 20 minutes. Using one of the brutal options hide the nice options, but you can click off the Nasty buff to see those again.
Being nice buffs you with [spell=65628], increasing your health regeneration by 3% for 20 minutes - which, at this level, is rather uninteresting, since you still have a huge HP regen out of combat anyway, compared to your HP.
If you don't manage to beat it out of the quilbar to complete the objective and receive the Nasty buff, simply be nice to him once to complete the quest, click off the Saintly buff, then kick him again.
Speaking of clicking off, having the Saintly buff prevents you from seeing any option whatsoever. If you happen to choose tickling first, thinking it to be some random funny meaningless thing, but want to check out the other options as well, don't try and abort the quest, this will get you nowhere :P Just click off the buff. Took me a while to figure this out, so I better share this with you, to save you the humiliation.