Your followers will see the content which you post every time you share something on Twitter, meaning that they can “like” or “retweet” your tweets. As you share more content to your Twitter profile, you should see your followers increase. The more that people follow you, the more people will see your tweets when you do share them.
You should follow people that you know and any pages which interest you or you would like to see more from. This could mean following people that you do business with, acquaintances or a news organisation that you like.