At each step, an indication is given to you to find him. The steps must be crossed in order.
Your position is indicated by the white marker. Around this marker the shaded circular area represents your area of detection. If Teddy or his passage are detected they will appear automatically.
You can move your marker directly on the map by clicking and dragging, or you can specify a destination (city, street ...) in the 'Location' box and then click on 'Go'.