As anyone will tell you, the very point of stealth in the first place is 'do not allow yourself to be seen.' Therefore, Lelouch should hide behind anything he can find. Wait until they are looking elsewhere. Keep his body low, make as little noise as possible, be mindful of his environment to ensure he does not attract attention.

However, since stealth could not solve this problem then it was time to break that basic fundamental rule! He stepped around the corridor, slapped his hand against the wall and made sure that everyone in this hallway could see him.

"Hey, isn't that one of the mascots?" he heard someone say. Lelouch ducked back around the corner. This was risky, but again what choice had he? "Wait a minute, doesn't that mean - Get back here! Don't run away!"

Lelouch did no such thing. Rather than run and hide, he slouched down against the wall and removed the mascot costume's head, set it next to him, relaxed his body and used the shadows to ensure his own invisibility by the time the first of them rushed around the corner.

"Huh? He must've run off and left the costume behind," said the first person to round the corner. "Never mind, all I need is the head."

"Oh no you don't, I'm taking it!" another yelled, mere seconds behind the first. Yet more still came, stampeding like a herd of frightened cattle. The first two lunged for the mascot head, both quite determined for some stupid ordinary photographs that would have been completely worthless a year ago.

At which time Lelouch grabbed one of them by the wrist and twisted his body around a fraction of an inch to face them directly. The crowd fell silent. Interest in the head became utterly invisible. Much like Lelouch's own body. For a long moment it seemed like nobody even wanted to breath, so Lelouch leaned over, picked up the head and put it back onto the costume while they all stared at him in mute horror.

With that done he simply strolled off and waited for the inevitable.

"Eek! A Stand!"

And off they ran. It was a rather twisted thing for him to do, but right now he didn't have all too much pity for people willing to go to such lengths for some mere photographs. Now all that lay between himself and the announcement room was this hallway.

-Lulu's Bizarre Rebellion Chapter 46