Tapping on an avatar will bring up the profile view for that account, where you can follow/mute/block and leave a note about that account (only visible to you).

Birthday #
Pleroma accounts can display a birthday. Long press on the header area to bring up the context menu for operations on that account.

Note #
You can save a note about an account that is visible only to yourself (it is saved in your account). This is particularly useful for remembering why you blocked someone.

Context Menu #
Long press on the header area to bring up the context menu for operations on that account.
