@yankees1958 @BillyBones @TheCuriousWoodworker
You can initiate it with the kebab menu (3 vertical dots) on their profile page, or by clicking the "More" ellipsis (…) menu on the bottom of a post they've made, then select "Direct message @ «username»" from the menu.
You can also simply start a message in your composer, iinclude any @ (any valid @ in the message is a recipient) then click the post privacy icon at the bottom of the post and select the envelope icon.
https://help.counter.social/en/latest/posting-content.html#post-privacy-settings