2) I get a message through from Twitter along the lines of "Moose Pasture Ltd (XYZ.v) is now following you on Twitter."
3) I click on their Twitter name and check out what they've been writing recently. To my surprise it's an account being run by a real human being that makes an effort. Yes, there are NR links and company promo material, but that's ok because they're interspersed with comments about things you've been read on Twitter or the web, answers and exchanges between you and other people, perhaps re-tweets of things you liked and want to share with others. Some of your "real tweets" are about your company, some are about the sector in which you operate (e.g. thoughts on the price of silver, a recent political development, whatever), some are you answering questions from shareholders or potential shareholder, some are even you having a friendly off-topic or semi off topic conversation with another person
4) My eyes open wide, I think, "Hey, a junior mining twitter acccount that's actually worth following for a change" and I follow you back.
5) From that moment, what you write in the future will be read by me.
UPDATE: IKN recommends the comments left by Iwnattos below this post and also below the Quinton/Cambone post as good reading material on the subject, too.