At the first day of my office, the CEO of our company came to our internee's seminar room, called a small meeting. As he is the boss, so we were little scared . After starting the meeting he looked everyone and found scare on all of our face. Then he said with a little smile Smile cost nothing', 'Your smile make another feel comfortable to speak to you' .

@ainie.kashif , After watching your post i remembered that day. The lines you are saying about smile are very true. Wonderful thinking dear :)