Your name is displayed on your profile but you aren't required to use your real name.
There is no Twitter account for this person.
No your name will never show up
Twitter is the full name.
Her Twitter name is @shakira
Taylor Lautner's twitter name is TaylorLautner and he is on twitter
There is only an official show account - @BGCONOXYGEN
Her Twitter name is @selenagomez
His Twitter Name Is @singerjawan :)
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.
He no longer has Twitter.
By linking your Twitter account with Facebook.
no