When you’re starting out using Twitter, your real life friends and contacts can be immensely useful. Apart from anything else they are likely to be the most sympathetic with your early attempts to understand the medium, and they’ll help you get started. If they are any good at networking they’ll also start introducing you to people in no time.
Here’s a really quick introduction to how to best find people you know on Twitter, using google mail (other mail systems are available) and Linkedin’s twitter integration app, Tweets.
You can also view this video on my JustProfs Youtube Channel (why not subscribe and get the screencasts even earlier?)
This is one of Seven First Steps on Twitter, See all the Seven Steps Here