I wore a pant suit. Charcoal grey. Underneath I wore a solid colored shirt, tucked in. (I'm not a "collared shirt" type of gal, so I just wore a plain shirt with a normal scoop neckline in a nice color so my outfit would still have personality). Basic black pumps, with a small heel. Hose. Hair back. Pearl earrings & a very simple necklace. No rings (expection if you're engaged/married), no bracelets. My roommate's mother is an image consultant and I talked with her about interview attire. Everything I listed above is what she recommended. I didn't have a suit prior to PT interviews, but I felt it was a good investment. I wore it to every interview I had and it can be used in the future for many occasions. I had it tailored as well. Good luck to you! 🙂