Summary: It's the best form of communication. This was based off of a cute KakaSaku picture I saw.
"Kakashi-sensei, can you hear me?"
The Copy Ninja stood several yards away pressing a paper cup, with a string attached, to his ear.
"Sakura, have you started talking yet?" He called over to her.
"Yes; I guess this doesn't really work."
"I think it's all in the execution."
He detached the string and placed it over the left side of his chest.
"What are you doing?" The kunoichi tilted her head curiously.
He tapped the cup against his ear emphatically.
"What are you doing?" She whispered into the cup.
Kakashi's eye creased happily. "I can hear you better like this."