Instead of buying some followers why don't you just follow those bitcoins users twitter handles? I think it is the best thing for you to do since you can get real free bitcoin enthusiast and it will not cost you some money aswell us you cannot make sure that your bought follower is real nor a bitcoin users since you doesnt know on where they came from. Or if you truly need maybe you should seek the service offered by the theviralexchange site and buy some viral points there and post your tweeter handle so that users of that site will follow you aswell retweet you so that you can gan get enough more followers that you need.