Recently scientists have suggested that the way a person sneezes reflects different aspects of his personality.

Dr. Alan Hirsch, a psychiatrist, neurologist and founder of the Smell & Taste Treatment and Research Foundation in Chicago said that your sneezing pattern reflects certain specific components of your personality. He mentioned that till date no studies have been conducted to examine different sneezing styles and what they indicate.
"Sneezes are like laughter. Some (laughs) are loud, some are soft. And it’s similar with sneezing. It will often be the same from youth onward in terms of what it sounds like," he said. "It's more of a psychological thing and represents the underlying personality or character structure."
An extrovert and outgoing person is likely to have an explosive and loud sneeze. But a shy and timid person will have a Minnie Mouse-type sneeze.
"In general, sneezing is an involuntary phenomenon, part of the body's mechanism of defense, a way of clearing out bacteria or other agents that would be injurious," says Dr Gordon Siegel, a Chicago-area otolaryngologist. "That being said, you can control to a degree the way it comes out."
Dr. Siegel said that the shape of one's nose and the structure of bones of one's face affect some degree of one's sneezing style.