Upon logging in, look for and click the button above to earn 10 free My Coke Rewards points. A login screen for Twitter will appear, but you don't have to log in or even have a Twitter account.
That said, if you do have a Twitter account, why not follow HIF? Or my personal account? Or how about some random person? You can constantly tweet at pretending to be their mom and telling them to clean their room or play nice. I'm fairly certain that's why the Internet was invented.