Friendship tips....
Be a secrete admirer of your friend:- If your friend is good at something then do not praise him in his presence. Praising a person for what he is good, does not improve his qualities, but can cause over-confidence to be induced in him, which surely will be harmful for your friend. A good friend should never miss an opportunity to praise his friend in front of others when he is not around.
Don't proved him wrong in public:- As it is important not to praise a friend openly in his presence, it is also very much important to abstain from proving him/her wrong in front of other people. Take him away from the crowd and let him know where he is wrong. There is no point in proving your friend wrong in other's presence; it will spoil your friend's image in other's view. And additionally your friendship will be in danger.
NOTE : These are my observations and experiences, give your valuable comments if you like it or not.
There is a tragic clash between Truth and the world. Pure undistorted truth burns up the world.