When throwing a dinner party always pay attention to where your guest will be seating and by whom. Set up assigned seating, when six or more guest are involved, and place name cards on each setting. Never allow couples or guest that already know each other to seat together. This will force them to strike up a conversation with someone they don’t know and in turn make for great dinner party conversation. And never seat two people who love to talk or with the same opinions together. Always pair them with their complete opposite for a more stimulating conversation for all.
Even though a bit outdated, I believe the words of Emily Post still ring true today:
It is usually a mistake to invite great talkers together. Brilliant men and women who love to talk want hearers, not rivals. Very silent people should be sandwiched between good talkers, or at least voluble talkers. Silly people should never be put anywhere near learned ones, nor the dull near the clever, unless the dull one is a young and pretty woman with a talent for listening, and the clever, a man with an admiration for beauty, and a love for talking.
Most people think two brilliant people should be put together. Often they should, but with discretion. If both are voluble or nervous or “temperamental,” you may create a situation like putting two operatic sopranos in the same part and expecting them to sing together.