have you thought about linking your mastodon account with twitter.
When using on mobile you can also view your twitter and mastodon as one. Reply to a tweet with a toot and get it then also sended into twitter.
Like that anytime you make a toot longer then 140 it will incl. a link to mastodon, which might attract by that some more ppl in using it.
Also that way mastodoners aren't left out from the dialoge you're havin on twitter.

Aral Balkan @aral

@paulfree14 Will take a look, thanks for the nudge :)

@aral for desktop also check out #caliOpen. I don't know if they support #mastodon yet, but if not they will in future.