Flashing a smile at someone is the best way to start a conversation

yes,I definitely agree with it. Smiling is a gesture which can do wonders and give good impression about the person.

Yes, I agree with the above statement and when you smile it conveys the message to the other person that you are available to converse with him or her. Perhaps this is the best way to get away very well along with others not only in our family but in our society and places of work....

Sure! Half the game is won by winning the heart with a winsome smile!

Yes. First impression is the best impression. Impression with a smile last long. hence flasing a smile at someone is the best way to start a conversation. It should be a pleasant one.