All what happens is that you can't favorite or retweet their tweets, but when you mention them, it won't show up in their notifications.
No.
u can't phone them
When you follow someone on Twitter, their tweets will then appear on your "timeline". This means that you don't have to go to someone's individual profile to look at their tweets.
Yes. Tweets will only disappear from your home page if the person blocks you.
get over it
If someone has blocked you on Twitter, you'll be able to send tweets to them, but it won't appear in their mentions. The only way they'd be able to see it if is they unblocked you to see it. They will be able to tweet you as normal, but they won't see what you tweet them.
If the report happens consecutively, Twitter might suspend the account you are reporting.
No, you can't email someone on Twitter. You can direct message them (if they follow you), however, which is kind of like emailing someone.
On Twitter, you can invite your msn contacts to join Twitter.
There is no such thing as a "Twitter spree." Maybe it's a reference to someone using Twitter excessively.
To do a retweet on Twitter by someone famous you can either use Twitter's in-built retweet function or type 'RT@username' where username is the famous person's username on Twitter and press 'tweet'.