As it was evening and there was no chance of seeing outside though I was trying to get some natural air from outside. So I tried to find out the locks of the windows so that I can open those and got refreshed with natural air. Some of my fellow passengers were skeptical about my activities. They were looking at me crookedly. I failed to find the locks. Later on, I saw an air hostess coming towards our seats. I asked her where is the window locks so that I can open it. Hearing that, many passengers started smiling. I realized that something went wrong and I felt shy. The air hostess was polite enough to reply me by just saying - sir the windows of a plane can not be opened because of the risk factor. I actually didn’t need a powerpoint presentation to know that and I immediately understood that it got very embarrassing. The journey was around one hour long, and all the way I could not look at other passengers as I felt so shy.