diff --git a/index.html b/index.html
index 160acca..975f8d0 100644
--- a/index.html
+++ b/index.html
@@ -1523,6 +1523,32 @@ function switchSide(){
 	}
 }
 
+function warmup(){
+	var startWarmup
+	var textExample = "iterative explorations" // hard to text in desktop browser as AFrame has its own shortcuts, e.g f for fullscreen
+	var jxrExample = "jxr qs a-sphere sa color blue"
+	var jxrJavascriptExample = "addNewNote( Math.random() + ' is a random number.' )"
+	// the virtual keyboard doesn't currently have symbols and some of them have a different meaning, e.g < or >
+	setFeedbackHUD( "starting the game in 1s, end with DONE" )
+	setHUD("")
+	setTimeout( _ => {
+		setFeedbackHUD( textExample )
+		startWarmup = Date.now()
+	}, 1000)
+	var checkingWarmupContent = setInterval( _ => {
+		warmupCheckTime = Date.now()
+		currentTextHUD = document.querySelector("#typinghud").getAttribute("value") 
+		var trimmed = currentTextHUD.slice(0,-4)
+		var elapsedTime = warmupCheckTime-startWarmup
+		if ( currentTextHUD.slice(-4) == "DONE" || elapsedTime > 100000 ){
+			console.log ( trimmed, textExample, trimmed == textExample, elapsedTime )
+			if ( trimmed == textExample) setFeedbackHUD( "You win in "+elapsedTime/1000+"s. Start again and do better." )
+			if ( trimmed != textExample) setFeedbackHUD( "You lose, different text:"+trimmed )
+			if ( elapsedTime > 10000 ) setFeedbackHUD( "Too slow")
+			clearInterval( checkingWarmupContent )
+		}
+	}, 100)
+}
 
 // could change model opacity based on hand position, fading out when within a (very small here) safe space
 </script>