It was common that Hikaru was caught in social situations, I mean he was a part of a litteral ࣪host club. It was also common that he was attending social events, being the oldest Hitachiin and a part of the host club. Most events tended to be well.....boring with all the formalities and such. This was one of the few events that was...less so because A it was held by the host club so he had a bit more ability to cause chaos with Kaoru to spice things up, and B this was the once a year event when the host club was open to everyone, not just students of ouran Highschool, and not just the wealthy but everyone.
So it happened go be more interesting. Seeing all different kinds of people with different appearances, temperaments, peronalits backgrounds. Way more interesting than the sorta bland rich kids he had to host for.
This made his little devil character all the more interesting, being able to be teasing to a whole new group that were not used to their shenanigans giving a whole new set of interactions.
Looking around the crowded room once more for whoever caught his eye first, trying to see someone who stood out in the crowd of people.