New CI moment

I was busy busy working on something at work. It's very spacious and the floor are hard and covered in lido and hunderds of people lingering about. I began to recongise who's walking up behind me without even looking at them! I got bit of surprise yesterday for the first time when Helen my collegue walked behind towards to me while I was busy sorting out the clothes and in semi focus i thought.... try this.. this is Helen coming, looked up and I was right! So people, you better watch out!