Here is some pointers on how to be a wine taster so when you go out public at some wine tasting public place you will not seem like the one how knows nothing.
Start with a clear wine glass. The rim of the glass should bend inwards to help funnel aromas to the nose, and allow you to swirl without spilling.
Now pour a bit of wine into your glass, about an inch.
If you are going to be tasting a lot of different wines start with the lightest (ending with a full-body wine). If you start with a heavy wine you may loose some taste senses.
Now also notice color and hue of the wine, try to hold the glass into some light, the color can give you a clue to what age it is. White wines usually gain color when they age, and red looses. You have to be an expert in a many different wine spectra's to spot specific wine ages just by looking.
Swirl the wine a couple of times by moving the glass in a circular motion. Holding the glass by its stem, instead of the bowl, allows you to swirl more easily. Swirling is done to aerate the wine and release vapors, evaporating from the sides of the glass, for you to smell.
Now put your nose tot he rim of the wine glass and breath in, note the strength of the aromas.
Take a sip, letting the wine spread across the tongue from front to back and side to side before swallowing. Notice the flavors and acidity of the wine. How silky or rough does the wine feel? See more tips below on
Unless you are to taste a lot of wines you may swallow it, but if you have to taste a lot of different wines its a good idea to spit it out.
This was only the basic of what the real professional wine tasters does, of cause they also take some other notes that I have no idea of yet, (that why I don't call my self an expert I just write what I experience and hope you learn something)
You should now find be prepared to go out and find information about the different aromates and looks of wines, take notes, listen to what other people has to say about wine, or just enjoy the wine as it is like me.