Job tips for college grads, and anyone else with nose piercings

With 37% of Millennials (18-29 years old) unemployed -- the highest number in three decades, according to a recent Pew Charitable Trust study -- graduating from college this spring will put them in one of the toughest job markets ever.

And with the Pew study finding that one in five Millennials have posted a video of themselves online, and nearly one in four have a piercing somewhere other than an earlobe, and nearly four in 10 have a tattoo -- job hunting could prove to be more difficult as picky employers look for new hires to appear before the public.

To help college grads find a job, Ellen Gordon Reeves, author of "Can I Wear My Nose Ring to the Interview? Finding, Landing, and Keeping Your First Real Job," offers 10 "deadly sins" for job-hunting grads, and a list of important things students need before graduating.