Mastodon is a great place for public conversations with interesting people from around the world.

Keep in mind:

People here may not be who they say who they are. I am definitely not an Oscar Wilde character!

Status privacy settings are only as trustworthy as the administrators of the instances that receive your toots.

There are ways to have semi-private conversations on Mastodon, but that's not what Mastodon is primarily designed for.