"Vampire Diaries" star Nina Dobrev is joining forces with Joe Jonas, Shaquille O'Neal, the boys of "The Buried Life," and more celebs to make a stand for children stricken by poverty, hunger, disease, and exploitation globally.

Fans and supporters can also join the cause by raising funds or just spreading the word. You're encouraged to talk to friends and family members about supporting your Vow of Silence by donating to the cause or just by helping to boost awareness.

People will take the vow in varying degrees. "For Vow participants, being silent can mean refraining from speaking. It can also mean not using email, Facebook, Twitter or text messaging. It can even mean not using hand gestures, note writing or any communication at all. Participants like you can determine your level of silence based on what you're comfortable with," reads the website, which you can visit at FreeTheChildren.com.

The day of silence is Nov. 30, 2011. Nina, Joe, and the rest of the supporters will be silent for 24 hours. If busy Nina -- who plays not one, but two characters on the series -- can take the day off from speaking... can you?