On Facebook you add the @ symbol before a person's name because then you can choose his/her name from your friends list and their name will be tagged in your status and they will notified. Other people will be able to click on the name in your post and get to your friend's profile page.
On blogs the @ symbol may refer to a Twitter handle.
Because it's called an "at" reply, or a mention. So they use the @ symbol.
The @ symbol you mean? If you want to tag them in it, yes.
No your name will never show up
Assuming you are referring to the social networking website, the name "twitter" is a legally registered trademark so it should be used with the ® symbol.
You can't hashtag their name but you can hashtag a phrase or a word. For example: #happy #excited #love. Hope that answered your question!! :)
Father (priest's title)
When logged in to your account, the Twitter homepage will have a section that says: "Direct Messages". Click on this link and from here you are free to message your followers. Or, you can find someones user name and enter it into the "Send to", section.
Well first what you do is go on your friends facebook, and then you press comment, and then you write the message on your friend's wall.
You don't need twitter but it is better to make a twitter account just before your skype account so that you can use the same name
It is referring to a person that owns or drives a Toyota.
If you start your tweet with someones user name then it won't appear on everyone else's timeline. However, if they go to your profile they will see it.
While you can only "direct message" people on Twitter who are following you, you can try to get someone's attention by referring to their user name and adding the @ symbol prior. For example @DavidWallace which is my Twitter user name would show up in my "replies" box in TweetDeck which is what I mostly use to access Twitter.
Twitter is the full name.