Washington, Apr 7 : High School Musical star Zac Efron has revealed that he has not signed up for Twitter, MySpace or Facebook.

Efron, 21, says that he values his privacy and does not like to have his personal life open to all.

"I don''t have a Twitter, a MySpace or a Facebook or anything like that," People magazine quoted him as saying.

"I kind of value in people not knowing where I am or what I''m doing," he added.

The star of the new comedy ''17 Again'' even gave a demonstration of what a typical posting would sound like.

"I''m on the toilet. Still on the toilet. Guys, dot-dot-dot, out of TP. Still on the toilet," he added. (ANI)