diff --git a/README.md b/README.md
index b7309d6..983c429 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ the project name might change later.
 ### How to play (for instance on sxiii's laptop)
 * Note: here HTTPie is used; can be replaced by curl or any other http tool
 * Note2: example with localhost [::] is ipv6 localhost representation
+* Note3: you can ran sample commands as-is in most cases, as they utilize your user name automatically
 
 0. Try to access the game server without any argument
 ```
@@ -26,7 +27,7 @@ http [::]:5002
 
 1. Register: send a POST request with your username
 ```
-http POST [::]:5002/register user=sxiii
+http POST [::]:5002/register user=$USER
 ```
 
 2. Get challenges
@@ -44,13 +45,13 @@ http [::]:5002/challenge/RegisterNet
 4. Solve a challenge
 
 ```
-http POST [::]:5002/challenge/RegisterNet 'user=sxiii' 'network=2a0a:e5c0:101::/64'
+http POST [::]:5002/challenge/RegisterNet 'user=$USER' 'network=2a0a:e5c0:101::/64'
 ```
 
 5. Get high score
 
 ```
-http POST [::]:5002/points 'user=sxiii'
+http POST [::]:5002/points 'user=$USER'
 ```