diff --git a/protocols/activitypub.md b/protocols/activitypub.md
index f38ba97..a099029 100644
--- a/protocols/activitypub.md
+++ b/protocols/activitypub.md
@@ -28,6 +28,10 @@ Instances may accept delivery of messages addressed as 'public' to a shared inbo
 
 Not clear if there is a global search capability.
 
+### User experience
+
+Currently the primary user experience is in a twitter-like UI (Mas.to or Pleroma)
+
 ### Privacy and Access Control
 
 ### Monetization