What I consider to be the difference in fake friends and real friends...
Fake: Asks for favors often, but never offers to do favors for you. In fact, they may refuse or feel burdened if they do anything for you
Real: Will offer to help before you even ask and if you do ask, they help out, willingly and without resentment
Fake: Talks about you behind your back
Real: If they have a problem with you, they discuss it, face to face, and in a respectful manner
Fake: One-dimensional. They see only their needs and is oblivious to needs of others
Real: They are in-tune enough to sense your pain, your needs and are supportive
Fake: Full of excuses for why they have no time for you - often only coming around when they want something and that something isn't YOU
Real: Wants to make time for you because they genuinely enjoy being with you and "choose" to nurture the friendship
Fake: Their actions don't back up their words
Real: Their actions are proportionate to their words, instilling trust and dependability
Fake: Makes fun of your imperfections
Real: Overlooks your imperfections and if you choose to improve yourself, they are encouraging and supportive. They may even join in.
Fake: Will try to lead you down a destructive path, not caring where it takes you
Real: Will encourage you to go down a constructive path. They will be by your side as you do.
Fake: Will drain your energy dry
Real: Will enhance your energy
Fake: Asks to borrow money often and never pays you back
Real: Only asks to borrow money if it's a true need and always pays back in a prompt manner. Willing to lend you money, if need be
Fake: Cuts you down
Real: Builds you up