Knowing your personality type will tell you alot about yourself, your learning style, and what characteristics you should emphasize in interviews.
Here's a few websites that have online personality tests
I took both and ended up with the same results. The second site has more in depth descriptions and once you know your personality type you can google it and find out even more)
Here is a description of personality types (read these after you find out your personality type) http://www.personalitypage.com/high-level.html
After you take the test, see how much it actually describes who you are. Then keep in mind the skills and qualities described in the test. If the test says you are analytical and organized, make sure to mention that skill when employers ask "what is your greatest strength." The test will also illuminate why you do things they way you do and help you understand yourself, which is an important skill to know as a lawyer and to know just in general. Also if you know your friends and colleagues personality types, you'll learn why they may do things the way they do.