probably entry level graphology, but someone at work recently was telling us ways you can judge peoples personality or behaviours simply by how they write. really amazing stuff.
a basic one is supposed to be that the rounder/loopier someone's handwriting the more open-minded the person is, and the, well, more opposite of that the more uptight and conventional, etc.
another example was how consistant your handwriting is. if it's generally similar and has a nice flow, that signifies inner peace. if you write in capitals, or alternate between the two depending on mood, that indicates issues.
apparently, you can tell how content a person is by how they write the number five. the more they start from the bottom, the happier they are. for instance, someone who does the top line first, right to left or one continuous character from there, is quite probably deeply unhappy. someone who does the top line first, left to right, quite likely to be unhappy. a person who does the body of the number first, then the top line, pretty content, and people who start the whole number from the bottom, usually very happy.