yes you can. there are two types of tweets through which bitcoins can be earned.
Normal retweet
Bullhorn
Yeah the twitter and the facebook is the best thing for us, so buy the bitcoin and then bitcoin is the positive thing I like the bitcoin for the income, the value of the bitcoin is making huge income just in the short time so hold the bitcoin and increase the profit.The bitcoin is the income and the facebook is also beginning the bitcoin part to increase the popularity of the crypto currency.