Do you tend to ask or tell? Do you tend to be more task or people focused? If you're tell-assertive and task-focused, you're most likely a driver. If you're tell-assertive and people-focused, you're probably an expressive. If you're ask-assertive and task-focused, you're an analytical, and if you're ask-assertive and people-focused, you're an amiable.
There are many resources out there on this...just ask google. ;) tracom group social styles is one, and there's a
if you want to get really into it...