The aromas of a wine are very important, especially for professional tasters. Highly qualified wine tasters can derive the different aspects of a wine, for example its varietal, the region it comes from, just by smelling the wine. So, what you want to do is swirl the wine, and take a little sniff. Most wines are fruity, so the majority of times, you should smell some sort of fruit. If the wine is of a better quality, then you can also get floral notes, perhaps some smokiness. And if the wine has gone through oak ageing, then you’ll be able to smell more mineraly, earthy notes.