8. Use Hashtags
Recent research suggests that tweets that include Hashtags are 33% more likely to get retweeted. A single hashtag post has 69% more chances of getting retweeted than a post with multiple Hashtags.
Although you should take these stats with a grain of salt, it is safe to say you should use hashtags in your tweets.
Do not create your own Hashtags if you plan to use them in your tweet. Twitter users can easily categorize and filter tweets using Hashtags. Don't just make dumb stuff!
Instead, spend some time to find out which hashtags are trending. You can increase the visibility of your tweets by using these Hashtags.
To find trending Hashtags, you can use hashtag analytics services like Hashtags.org.
9. Allow Tweetables on Your Blog
These are pre-formatted quotes that you can use in your blog posts. You'll be able to get more replies and retweets when you use them than with standard sharing and tweeting.
There are many Twitter plugins and generators that will help you make some really amazing tweetable.