Sebek feels he's being judged on his cooking. Surely his must be better than some of the other cooks on this train. However, Idia has eaten a little bit. A little. Is that more than what he ate before?

He might look like he's really struggling to stay quiet because he doesn't want to reveal his plan to Idia. Ah! That's it! Sebek will show Idia what it is like to have a proper appetite (and how to properly hold utensils) by example. He starts to eat his meal(s) without further hesitation and practicing his best manners.