In most public spaces today we have many reflective surfaces like mirrors, clean shiny glass and metal and lots more. Walk slowly and without moving your head to look observe in how many ways you are visible around you. Note that many people can see you without looking at you by seeing your reflection. Now note which people or object you block from sight by your movement and take the time to see this from different angles. Work with a partner to see where you are completely shown and where you are completely blocked from sight and try and find a way to understand the design which allows for this. Consider having a person standing in one place and you have to come close to him and touch him without showing in his fixed line of sight. Have fun and remember that awareness is life.