In both the garlic-kissing and the mooning quests, I experienced inconsistency in the counter (x/5) required by the quest. I kissed/mooned 4 or 5 different players, all friends, and the counter still only said I had done 1 or 2. Eventually by kissing/mooning everyone I passed, I completed the quests, but it took far more than the required 5 actions to complete it.