Retweeting is a way to share another twitter’s message with your followers. You’ll note that Twitter offers a Retweet button under each message. I would recommend that you not use this option as it does not allow you to add any comments and it’s hard to tell who retweeted the message so not good for branding. Here’s an example of what an automatic retweet looks like:
Compare these two messages to the following examples that were manually (classic) retweeted:
Classic RT allows you to add your own comments and shows your Twitter ID. (Most 3rd party apps will let you do this!) To manually retweet, cut and paste the original message into the message box, add RT at the beginning and add your comments either at the beginning or at the end.