Knowing someone

Tough topic..isnt it ? oh yeah..i love to do the unusual. Yes, i think knowing someone is becomes key aspect our life as we start gaining conscience..i am sure each one us takes decisions of his/her life based on knowing the background of the decision related to it...may its materialistic or humanitarian in nature..I am sure people will agree that its crucial to know someone, before you decide to believe on that person. At the same time our society has estranged by this thought..