A group of happy people exits the lobby of the Luxor Hotel and climbs aboard a sightseeing bus, excited to begin a second day touring Las Vegas. The men and women chat and laugh, poking fun at one another about events that happened the night before. But it is remarkably quiet. Only their hands are moving as they look at their partners, their faces and body positions emphasizing their words. The other passengers on the bus sit there awkwardly, surprised to be excluded from the energetic conversations. It is then that they realize how deaf people must feel when they are among those who hear.