No this is not possible.
No you can't.
it means to tell them about it
not unless they write on your wall no
I guess that you will be able to tell by how they speak to you!
It is a blogging site, not a 'friend' site like Facebook. You cannot search people. They have to tell you their URL.
Look at their computer...well then again I guess that beats the point of secrecy...and chat... hmmm screw off!
by looking on your profie and look on friend requests at your home page and it will say the number of requests you've got
Well no but they will know if you are on though.
No but they will know that your on a mobile
Yes. You can't do anything with them. Nothing.
you can go online and look at this site instantdomainsearch.com/ . It will tell you if a domain name has been used by someone else . It can also tell you if the name you want is still open or if it is used by someone else .