Professional decorum.

The Electronics Entertainment Expo, the biggest video game industry confab in the country, is scheduled at the Los Angeles Convention Center May 9-12. E3, as the trade show is called, will play host to more than 450 exhibitors in its 12th year. Last year's event drew nearly 60,000 game enthusiasts. Organizers said this year's event will feature 5,800 flat-screen computer and TV monitors, and 850,000 pounds of electronic equipment mounted on the ceiling. The event has a strict "industry professionals only" policy, but the mobs of teen-agers waiting in line for the doors to open belie a more flexible definition of "professional." Last year's event boasted a 56-foot LED monitor, the biggest at the show yet (courtesy of Sony Corp.), and an impressive collection of authentic military vehicles, (courtesy of the U.S. Army.)