because currently, ramai sangat yang bajet "look at me, I am a gud friend n u r shucks!"
1. Notice how often a friend tries to embarrass you or make you look bad in front of anyone or everyone, especially after you've told, asked, or begged them to stop. This can be a major sign that the person does not care for you as a friend but rather as a source of entertainment, at your expense, of course.
2Observe if the "friend" is mean to you or makes fun of you all the time. A mean friend may try to take advantage of you or possibly push you around. Keep in mind that some friends make fun of you in a joking way, while others do it to lower your self-esteem. Realize what they are doing, and find someone else who appreciates you.
3Notice how often a friend breaks promises that they make to you. Maybe your friend calls you up to see a movie, but then cancels your plans at the last minute, or even worse only a minute or two after making it. This can be a major sign that the person does not want your friendship but only your companionship, and only when they can get nobody better to fill that void.
4Notice how often they belittle your accomplishments. If you write a superb piece of fiction they will accuse you of plagiarizing it from another source. Sometimes they will praise your work to your face, but you may discover they are making fun of it behind your back. Being two-faced is not a sign of a real friend.
Notice how often someone's friendliness increases whenever they want you to do something for them, and diminishes whenever they don't want you to do something for them. For example, let's say you're going to have an awesome party next weekend. This person may start being nice to you and acting like your friend so you will invite them. Or they start being nice to you and then try to get you to do something you wouldn't ordinarily do. This is a major sign that they only want to pretend to be your friend as long as there is something you can do for them, but not be your friend if they can't get something specific for their efforts. Realize that some people will only be your friend if you do something for them. Try to be aware of the fact that this person probably does not want to be your friend, and find someone better to hang out with who actually likes you for who you are.
6Notice how often they forget or ignore important dates to you. They will tell you all about the presents they received on their birthday or the wonderful time they had on their wedding anniversary. But when those dates roll around for you, either the false friend is nowhere to be seen or heard from or they will contact you after the date has passed and claim that they forgot all about it. This is definitely a sign the person is interested in you only as a casual acquaintance, not a real friend.
7Notice how often they ignore you: ignore what you say, ignore your presence, fail to introduce you when they're making introductions, they offer something to someone nearby but not to you, etc. Some people just like to talk about themselves and not care one bit about you. On the other hand, some people act super nice to you one day, but the next day they act as though they have no idea what-so-ever of who you are. What ever may be the case, you should think twice about being this person's friend if this is frequently occurring.
8Notice how often the person only behaves friendly to you when no other friends are around. This may mean that the person is talking to you out of boredom and does not actually want to be your friend. Also, if the person constantly leaves without warning or explanation, take this as a hint they do not want to be your friend.
Notice how often a friend chews you out for making mistakes, or chews you out for bringing their mistakes to their attention but chews you out for making even little mistakes. Some people want to surround themselves with perfectly-behaving people so that they will be perceived as being better than they actually are. It doesn't work, but lots of people for some reason believe that it does.
10If you find yourself to be in any of the above situations very often at all, it might be time to start seeking other people to spend time with. If you find yourself to be in one or more of the above situations pretty frequently, it is time to start spending time with other people. Remember though that some people have differing personalities and it is usually a good idea to talk to someone about the situation before entirely scrapping your friendship, in case what you have judged to be a false friend is actually not.
11If they do not respect what you like as well as dislike. True friends respect the things that you like so, they would not want to change your field of interest. If you are a person that enjoys attending art galleries, museums, and going to musical theaters, then your friends should support that no matter what. If they try to make you go to rock concerts that are not enjoyable or go to movie theater with noisy people when you don't want to, perhaps they aren't a true friend.
12Real friends respect another friends' moral values. If you have very high moral values, then your friends should either share the same values or respect them. If you do not believe in having sexual intercourse before marriage, then your friends should respect and leave it at that. If they believe in "friends with benefits" and push it onto you, then you should leave them alone and find someone else that does not believe in that mantra.
13Real friends love you just the way you are. If they are trying to change you in a way that makes them accept you, then don't waste your time on them.
15Go back in time to analyse what you did to the unreal friend. Did you fail to help them out or manage their expectations? There may be a clue there.
taken from http://www.wikihow.com/Identify-a-False-Friend