I was standing near the lift for going to the sixth floor in my office building.There were other people too and for some reason the lifts took a longer to reach our floor.As new people came near the lift, I noticed that each and everyone was invariably pressing the lift button as soon as they arrived. I was thinking to myself whether they dont realise that already there were so many people standing near the lift and atleast one among them would have pressed the button for the lift to stop in the floor? But then also i remembered doing it myself so many times. I wondered why we do that? Is it an involuntary action that one is programmed to press the button as soon as he comes to a lift? Is it that fear that may be others wouldnt have done it before us? Is it that feeling of security one gets pressing the button by himself? Then, is everyone so absent minded that they dont know what they are doing? Personally speaking, for me it was an involuntary action. The mind may be preoccupied with so many peremptory things that the routine stuff which it has already done so many times runs in automatic mode.The body is kind of programmed to perform the actions even if your concious mind is not constantly monitoring the your own actions. I can even quote an example like a person driving through the busiest streets to his office but cannot remember a single thing in the journey because he was always thinking about the meeting which he was attend that morning.I wonder myself.It has happenned with me so many times. Wierd but true.It could have happenned with anyone.It does happen i am sure.May be some psychologist who reads this blog may be able to post the answer.