a good friend:

is there for you no matter what.
doesnt judge you.
doesnt put you down.
doesnt hurt your feeling.
is kind and respectful to you.
is someone whose company you.
is loyal.
is trustworthy and willing to tell you the truth.
laughs with you.
sticks around when things get tough.
makes you smile.
is there to listen.
is there to cheer you up when you cry.