During a wine tasting convention you may be a little apprehensive about spitting wine out. But rest assured that there is proper ettiquette in spitting out wine. This video will demonstrate the correct way to do so.
Spitting gracefully seems oxymoronic, but wine guy Matt Skinner does it with a sweet purse of the lips. He demonstrates a professional spit, and suggests that spitters swallow about a quarter of the wine in order to get a true sense of the texture and taste.