tons of questions about twitter.?

[Emily McPherson]

When you follow someone on Twitter, you can see their tweets but they cannot see yours. However, when you first follow them, they get a notice so that they can follow you back if they wish.
Anyone can follow your tweets (as long as they go to your page and click 'Follow'); you get an email or text saying "(whoever) is now following your tweets on Twitter." You can block them if you want, then they can't see your tweets.
You can also go to settings and put security on your tweets so that you can approve of who follows you. For example, if I were to go to your page and click "Follow", you would get an email or text saying "Emily wants to follow you on Twitter" It's like a friend request on facebook: You can accept (they then can read your tweets) or ignore (they won't know if you ignore but they won't be able to read your tweets).

Hope I helped!