KNOWING A PERSON IS JUST LIKE STUDYING..
if you don't really understand a person, then you will forget him sooner or later, and you will have hard time trying to recall anything about the person.
if you understood that person well, then you'll hardly forget him. Even if you lost touch with that person for some period, you'll eventually get close with that person again when you guys contact.
Moral of the story :
Be yourself so that people can really understand you, don't fake yourself up to be someone you're not. I'm sure some people has different personalities in different places, why? Because they're scared of how others might think of them. They're scared to reveal what's hidden within themselves, which is hidden in the first place because it's something bad or evil. They're scared of not being accepted by others. Hence, they can only imprison themselves in that frame of socializing only with those who really understood them well. Anyway, I always learn to bear in mind that nobody is perfect and we need to learn to accept others' weaknesses, and so do others having to bear with ours. If we do not open our heart to others, people will not bother to search for what's inside. Also, you hardly have a chance to love, because you're trying to be perfect, but sadly no love is perfect without imperfection.