Dart telling Lavitz that they ought to take a nap because rest is good for the skin and every young lady ought to know that.
In fact, all the various suggestions you can give Lavitz when visiting his house.
Kasier telling Shana he does not mind how bad her cooking gets cause they can always drown it out with salt.
Mappi and his pals, when they face you for the first time.
There's a very funny but optional cutscene that happens after you helped the little kid and his mother to reach the city on the island in Illisa Bay during act two. If you visit him later in the clinic he'll tell you about his wish to become an adventurer like Dart. Depending on your answer, a funny event with Meru/Rose/Shana will happen.
Near the end of act 2, you have to look for your friends in Zior's castle. You stumble into Meru and Haschel as they're being kicked out of the kitchen, and you can have the chance of supporting their idea.
A mininto in Lohan offers to Dart a "Special Ticket" with the front printed on the back and the back printed on the front. Then when Dart asks him what's the actual difference from a normal one, he realized that he has been tricked and goes apeshit.
During the tournament in Lohan, if Dart loses the first match, his opponent will attempt to kill him and thus be disqualified. After this happens, Shana will say that she wanted to shoot the guy with her bow and Rose will remark that her opinion of Shana has improved.