use promoted trends to publicize events
Obviously, if you’re running a Promoted Trend or Promoted Tweet, it helps if you have some kind of news, product launch, or associated event. For instance, For instance, Coca-Cola earned high engagement during the World Cup - whenever a goal was scored, Coke would unleash a celebratory tweet
BUILD THE BRAND WITH PROMOTED ACCOUNTS
Promoted Accounts are likely a better vehicle for long-term brand building.
With a goal to gather as many followers for a corporate account as possible, Twitter positions Promoted Accounts in front of users who might be interested in the brand. Twitter gauges such interest by noting who said people follow and what they tweet.
Use your hashtags
You might decide to opt for an open-ended hashtag that encourages people to add their own thoughts. By doing this, more people are engaged to your brand message.
FOLLOW THROUGH
Using lines like ‘Be the first person to follow us' or 'Follow us and visit this URL,' your business would very likely be sitting on a very large online audience that could be reminded every day about the brand, its products and other promotions."