Formal Dining: Dressing for Business Dinner - as part of the expert series by GeoBeats. When dressing for a business dinner always remember it is all about business. That means for a man I do recommend a business suit and tie. A white shirt always has the highest level of authority so of course it is going to depend on whether you are dining in a restaurant or a home and the level of seniority of your business colleagues. For a woman I recommend that you dress in something conservative such as what I am wearing today. So not showing cleavage, not showing too much in the way of short skirt and showing legs and then also having appropriate jewelry. Many times women will wear earrings that are far too large or dangily. And that is sending out a mixed message that is not appropriate. And business always means something that is a fabric is not shiny and it means something that is taylored with a set in sleeve and that will keep you always focused on business. Your body language always says a lot about what you are doing in business. So the clothing, the body language, the voice and mannerisms, and even the words you choose to use. I recommend you use words with 2, 3 and 4 syllables, giving yourself a level of congruency right through spoken word, body language and your business attire.