diff --git a/apb/src/target.rs b/apb/src/target.rs
index f130dd3..9de517a 100644
--- a/apb/src/target.rs
+++ b/apb/src/target.rs
@@ -4,7 +4,7 @@ pub const PUBLIC : &str = "https://www.w3.org/ns/activitystreams#Public";
 
 pub trait Addressed {
 	fn addressed(&self) -> Vec<String>; // TODO rename this? remate others? idk
-	// fn primary_targets(&self) -> Vec<String>;
+	fn mentioning(&self) -> Vec<String>;
 	// fn secondary_targets(&self) -> Vec<String>;
 	// fn public_targets(&self) -> Vec<String>;
 	// fn private_targets(&self) -> Vec<String>;
@@ -19,11 +19,11 @@ impl<T: Object> Addressed for T {
 		to
 	}
 
-	// fn primary_targets(&self) -> Vec<String> {
-	// 	let mut to : Vec<String> = self.to().ids();
-	// 	to.append(&mut self.bto().ids());
-	// 	to
-	// }
+	fn mentioning(&self) -> Vec<String> {
+		let mut to : Vec<String> = self.to().all_ids();
+		to.append(&mut self.bto().all_ids());
+		to
+	}
 
 	// fn secondary_targets(&self) -> Vec<String> {
 	// 	let mut to : Vec<String> = self.cc().ids();
@@ -73,4 +73,29 @@ mod test {
 			]
 		);
 	}
+
+	#[test]
+	#[cfg(feature = "unstructured")]
+	fn primary_targets_only_finds_to_and_bto() {
+		let obj = serde_json::json!({
+			"id": "http://localhost:8080/obj/1",
+			"type": "Note",
+			"content": "hello world!",
+			"published": "2024-06-04T17:09:20+00:00",
+			"to": ["http://localhost:8080/usr/root/followers"],
+			"bto": ["https://localhost:8080/usr/secret"],
+			"cc": [crate::target::PUBLIC],
+			"bcc": [],
+		});
+
+		let addressed = obj.mentioning();
+
+		assert_eq!(
+			addressed,
+			vec![
+				"http://localhost:8080/usr/root/followers".to_string(), 
+				"https://localhost:8080/usr/secret".to_string(),
+			]
+		);
+	}
 }
diff --git a/upub/core/src/model/activity.rs b/upub/core/src/model/activity.rs
index 1697c67..45c14e1 100644
--- a/upub/core/src/model/activity.rs
+++ b/upub/core/src/model/activity.rs
@@ -103,4 +103,10 @@ impl apb::target::Addressed for Model {
 		to.append(&mut self.bcc.0.clone());
 		to
 	}
+
+	fn mentioning(&self) -> Vec<String> {
+		let mut to = self.to.0.clone();
+		to.append(&mut self.bto.0.clone());
+		to
+	}
 }
diff --git a/upub/core/src/model/object.rs b/upub/core/src/model/object.rs
index 3165502..d44f467 100644
--- a/upub/core/src/model/object.rs
+++ b/upub/core/src/model/object.rs
@@ -189,4 +189,10 @@ impl apb::target::Addressed for Model {
 		to.append(&mut self.bcc.0.clone());
 		to
 	}
+
+	fn mentioning(&self) -> Vec<String> {
+		let mut to = self.to.0.clone();
+		to.append(&mut self.bto.0.clone());
+		to
+	}
 }