WHAT TO WEAR:
When dressing profesionally, It's good to dress conservatively. This includes wearing clothes that are buisness appropiate and don't reveal too much.
For men it is always appropiate, if not wearing a suit, to wear a belt even if one is not needed.
WHAT NOT TO WEAR:
What not to wear in a buisness setting include clothes that show too much, or have inappropiate sayings.
WEB SITES THAT MIGHT HELP:
VIDEOS THAT MIGHT HELP:
Men's Formal Wear
How to Understand Formal Wear : Formal Wear for Women