void Update() {

			 while (trigger == false) {
						if (Input.GetKeyDown (KeyCode.W)
								| Input.GetKeyDown (KeyCode.A)
								| Input.GetKeyDown (KeyCode.S)
								| Input.GetKeyDown (KeyCode.D)) {
								hudText.Add ("Nice work! Now try...", Color.red, 3f);

				 				Debug.Log (trigger);

								trigger=true;


							}
				}
		Debug.Log (trigger);
		}
}