This is not JUST for girls. It is for guys as well.
If you think about it, it is even easier to seduce guys than it is to do so with girls. And by seduce, I mean become friends with them. How many people actually try to make a guy feel SPECIAL and WONDERFUL inside?
We are all humans and we all want to F E E L G O O D
When you are around someone who is making jokes and NO-ONE IS LAUGHING, this is your time to shine. How can you make them feel good and special in this situation? Simple. YOU are the only one that is laughing. You are making them feel good. You are their source of happiness.
It's exactly the same thing that girls do when they are interested in you. In general your jokes may not be very funny or clever. But when you are around this girl, she can't stop laughing and having a fun time and you start thinking "When/How did I become so funny?" Emotions are contagious And so, you will also start to F E E L G O O D , and she is the source of your happiness. Thus, you will start to try to be around her, because when you are around her you are happy.
I'll type more later, if needed.