Some points to think of when creating a Twitter account for search optimization reasons. This article came from this source.

Profile: You need to choose your username carefully in order to rank with your profile. A crisp and relevant bio is a must to get noticed by both human users and search engines.

Tweet: What you tweet is the most important of all. Tweet regularly but not too much as it can annoy your followers as well. Like humans search engines also don’t like the idea of tweeting for marketing purpose only. Google can take frequent tweet with the same content as spam.

Hash Tags: Keywords preceded by a hash tag (#) help in getting a placement in twitter’s real time search as well as Google search. Instead of covering a broader term you’ll better focus in more specific keywords for better ranking. For example, if your profile refers to an Indian SEO company using #SEOIndia would be more accurate than just #SEO.

Re-tweet: Leverage the power of re-tweet option in Twitter by posting some really good and useful content. Use widely searched terms in your tweets; try tweeting unique and interesting facts related to popular topics. Posting useful links and content will automatically impel your followers to re-tweet and recommend your profile (FollowFriday recommendation) to their followers.