Every elections, graphologists (people who study and analyze handwriting especially in relation to human psychology) take center stage in order to analyze handwriting of presidential wannabes. This year is no exception.
Here is an interesting article from LA Times about the presidentiables' signatures.
Mind you, graphology is not an exact science. But if you are interested about what your handwriting tells about you, you may want to check here: www.handwritingwizard.com.