diff --git a/docs/how-to/test-ptth-quic.md b/docs/how-to/test-ptth-quic.md
index ba2fca8..3bc15a8 100644
--- a/docs/how-to/test-ptth-quic.md
+++ b/docs/how-to/test-ptth-quic.md
@@ -1,8 +1,20 @@
 # How-to: Test PTTH_QUIC
 
-- Put a couple terminals in `prototypes/quic_demo`
-- Set up a relay `cargo run --bin quic_demo_relay_server`
-- Verify that the relay has no servers connected
-- Set up a server
-- The relay should refuse the server's connection if its API key is not recognized
-- Once the relay recognizes the API key, the server should automatically reconnect
+## Initial setup
+
+- Open 3 terminals in `prototypes/quic_demo`
+- Use `export RUST_LOG=quic_demo_relay_server=debug` to enable debug logging
+for the terminal that will run the relay server
+- Use `export RUST_LOG=quic_demo_end_server=debug` for the terminal that
+will run the end server
+
+When the relay server is running, use curl to get the list of connected
+end servers: `curl 127.0.0.1:4004`
+
+## Test loop - Happy path
+
+- Start a relay `cargo run --bin quic_demo_relay_server`
+- Verify that the relay has no end servers connected 
+- Start an end server `cargo run --bin quic_demo_end_server`
+- Verify that the end server connected
+
diff --git a/prototypes/quic_demo/src/bin/quic_demo_end_server.rs b/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
index 19ba94d..c5a9feb 100644
--- a/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
+++ b/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
@@ -31,6 +31,7 @@ async fn main () -> anyhow::Result <()> {
 		..
 	} = protocol::p4_connect_to_p3 (&endpoint, &relay_addr, &server_id).await?;
 	
+	debug! ("Connected to relay server");
 	trace! ("Accepting bi streams from P3");
 	
 	loop {
diff --git a/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs b/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
index 72e47d5..f2e51c9 100644
--- a/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
+++ b/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
@@ -56,6 +56,8 @@ async fn main () -> anyhow::Result <()> {
 		http_server.serve (make_svc).await
 	});
 	
+	debug! ("Serving HTTP on {:?}", http_addr);
+	
 	while let Some (conn) = incoming.next ().await {
 		let relay_state = Arc::clone (&relay_state);