It is a nice button for leaving a miss call :D

A kind of notification so that people know you miss them

Its a best way of get attention of another user. I like this function.

“poke” is basically someone trying to get your attention.

I think poke means who tells remember to him.

how to create the poke?

Through poke we can tell a friend that you visited his profile

Hi
Poke means to get attention on someone.

Nice.Thank you For Given Your answers.

The poke is sort of outdated nowadays. It's still available, but I don't think anyone uses it anymore.

Okay...i came to know one more thing about facebook.

Poke is to get attention from someone and also telling someone that I am missing you also..If someone is block from sending friend request, he can also poke the one to get noticed. It is sometime a way to irritate someone.

If you get poked it means someone is trying to get your attention. Poking also means that you are annoying someone. The only thing that happens when you poke someone is that this person receives a poke alert on his or her home page. You cannot make an impact on their profile.

Meaning of Poke
people who poked you, you will get a notification.

Haha it's a way of saying 'Hey I need your attention but I'm too lazy to write a message so please ask me what's up' :p I haven't found poke useful since I've been on facebook to be honest, and I don't like it when people poke me because I have to ask what is up and they could've just said it in the first place.