On Pawoo, you can send Direct Messages (DM) that will only be visible to the user you've sent them to.
You can send a DM in the following way:
① Enter the ID of the user you want to send the DM to. (The ID starts with @)
*Please enter a half-width space after the ID.
You can also click on the arrow button in one of your target user's Toots. The ID of that user will automatically be displayed in your Toot section.
② Click on the globe mark
③ Select the envelope mark (Direct)
After you've selected the envelope mark, the Direct Message will be sent to the target user.