It is rightly said that one can share any secret with a true friend. He may know your deepest fears and weaknesses and yet will never take advantage of you. However, keeping a friend's secrets to yourself and not telling the world about is what makes the bond grow strong and last forever. You need to develop a trust and mutual understanding before you start sharing secrets with each other. With friends, secret talks never seem to end and it can get really amusing to know what has been going on in your friend's mind.
Sharing secrets with a friend is not just fun, but it also helps to develop a lasting trust on one another. Sometimes, sharing secrets will tell you more about the person. You will come to know whether your friend is reliable and trustworthy and whether it is worth sharing your secrets with them. You can call it a test of friendship and if a person passes it, he / she is definitely worth being made a trustworthy friend