food!
[ Not in the best mood, due to his own costume, but Lelouch has a Great Deal of Practice smoothing over irritation with placid smiles. And Chekov made a good impression, so he's worth the effort it takes. Attention darts briefly to the hotdog fingers, and then to the costume, and Lelouch pauses, the smallest frown line settling between his eyebrows for an instant.
Then it's gone, but his smile is more genial and cautious, in case they're currently strangers. ]