From the character traits: boys are made of mud, the character belongs to the coarse expansion, is the masculine performance characteristics; girls are made of water, the character belongs to the gentle type, is the feminine performance characteristics.
From the emotional characteristics of the points: boys emotional thinking independent, more practical, belong to a more direct type; girls emotional thinking connotation, more heavy heart, belong to a more latent type.
Regardless of boys and girls, to be subdivided down can be divided into a lot of difference, but can not be said to be completely fixed type, are just the general meaning!