[quote=Halo]
Depends what you mean by "friend", midear. Someone to have a laugh with, or someone you can really trust, rely on, and care for. People can advise you on how to get the first, but the latter... they're harder to come by and the relationships tend to grow organically. You can be told how to meet people, to get the opportunity for friendship - but not how to make a true friend. That's something there isn't really a "guide" for - it's down to you to form that relationship. Not using and manipulating them would be a good starting point, though, yo.
[/quote]

Someone that gives me fuzzy warm feelings inside and to hang out with. Possibly get drunk with and have inappropriate adventures. A few qualities I might like are:

Not get emotional when I turn icy cold.
Doesn't take things personally too often.
Likes a happy mix of serious and joking with a touch of innuendo. 
Isn't ignorant in terms of learning.
Knows when to shut up.