In good light, tilt the glass over a white tablecloth and look at the color. Aerate the wine by swirling it in the glass. Put your nose in the glass and take a deep breath to check the nose. Each wine will have different qualities. Checking the clarity, color, nose, and taste provides a way for the consumer to distinguish favorable qualities.
Wine is a matter of personal taste, there is no right or wrong.
Drink what YOU like. Sanitation isn't as important in winemaking, since wine must is more acidic than beer. Most of the equipment needed for winemaking is the same equipment used in brewing. There are several ways to get started. Most brew shops carry wine kits in a box.