[[ NOTE: I have re-worded things to sound more natural to a native English speaking person. This is just the first paragraph. If you like my suggestions, I can continue. ]]

Friendship is a special and important relationship in our lives. Many different factors determine which people will become your friends. As for me, I think that the most important characteristic a friend must have that is being reliable.

What characteristics do you want most in a friend? Thanks to check my composition!

Friendship is a kind of special and important relation in our individual life.Different features are reasons form your friends who you will make friends with them.But as for me,I think that the most essential characteristics my friend must have that is reliable.
Firstly,reliable friends will keep each other's secrets that never reveal to others.Because any information is more personal for her that will tell you honestly in some cases.
On the other hand,good friends are the first persons who provide some help and encourage to you if you have something problems.
Finally,among inter-human relations,trust in each other is the basic and crucial requirement.It will open the topic of talking and make your communication more deeply so that the friendly relation will be increased and become close friends.
We all know the old saying that"a clear steam is avoided by fish",which means as a person is reliable enough,they may be rejected by others.But if the steam is too dirty,fish can't live in it as well.In conclusion,if you have pure heat or honest to making friends,our life will more harmonious and without lies and hypocrisy,finally the reliable friends will appear.

   Friendship is a kind of special and important relation in our lives. A combination of factors will affect us to identify someone as a friend in society. As for me, what I would consider as the priority to maintaining friendships with people is reliability.

   Reliability is so crutial to holding a genuine and longstanding friedship that few people could take exception to. Think how often our "friends" betray us when you would keep it as a secret after you confessed your deep feelings.

   In addition, if we trust someone, we can always go ask for help and encouragement when we are caught up with life problems that we can't face alone. Another benifit to having trustworthy freinds is when you socialize, where your relations will be strengthened through open and honest communication.

  Pls: I don't get what you meant to say for the last paragraph, so I don't have a clue how to   correct it.