Answer:
It means he is confident and comfortable at the convention, it is something he enjoys and has experience with.
Different- mount olympus is in nyc at the top of the empire state building (an actual place in the human world) & above the world (very top floor that does not really exists to humans); underworld is a place that non humans never see/know of & it's under the world
C. really.
Trust me nobody talks like that.
you could probably flip really and the around, then it would work. :)
