My advice is to practice some sample wonderlic tests on the internet. I did 2 quick sample tests for 5 minutes and I feel it helped me get off to a faster start than I would have otherwise.

Also, have a few stories in mind for the 'tell me about a time when' questions. If you have 4-5 diverse stories ready to go in your head you can apply them to just about any question.

Be 100% honest and sincere with all of your answers and RELAX... I felt as if they were paying more attention to my demeanor and the social aspects of my answers rather than the details.