Haestinger is a user on octodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
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@pzmyers By following me, you just won an ebook of my novel "Summer of the Gods". Please give me an email address and your format of choice (mobi, ePub or PDF), and it will be on its way!
@SaschaKersken Yes, it does.
Look in the little menu at the bottom of the compose box where you can set your toot to public, unlisted, private, direct.
@Monkeymind Yeah, thanks, I got this :).
@Haestinger @pzmyers They're not spam, they're copied and pasted by hand. I promised my first 20 followers a free ebook copy of my novel. Unfortunately, unlike Twitter, Mastodon doesn't seem to have a direct message function yet.