If somebody leaves u with lots of tears.. then just save them safely. later wen a person who cums 2 u with happiness, then just compare the saved tears and present happiness. If happiness overcomes your tears .... Then i am sure you have found your BEST FRIEND.
A 5 year old boy asked his friend. What is friendship? He replied: Friendship is when you rob my chocolate every day from my bag. I still keep it in same place.