It's all hogwash.
My company once organized a 'wine appreciation' class where we had a guy from a Italian vineyard teaching us different types of2 wine, how to drink them, how the pair them with the right food etc. Since it was almost a free class and had free drinks (taste appreciation purposes only
) me and mate were one of the first 'volunteers'.
Had a bit of theory and after than had 6 glasses of wine before us, which we needed to taste and identify the flavours. We were totally lost for first two glasses but the others were very involved with comments on this fruit and that cask all over. Not wanting to feel left out, we decided to make stuff up and started with comments like "Yeah, this has aged well" "It really is a clear wine" "I can taste cinnamons" or tobacco or whatever fruit comes to your mind, nobody will dispute you....
...and we drank happily ever after!
If you guys aren't aware here's a short cheat course on becoming a instant wine connoisseur.
1) If you are unsure, ask waiter for recommendations. Don't EVER "bring me the most expensive wine you have" Bad manners and it's probably bankrupt you. Pretend to know and choose whatever name he says that is most easier to repeat. Usually "I'll take the Merlot" will suffice.
2) Look at the bottle, just say out the vintage year out loud "Ah, a 1975" Who knows what it means.
3) Life the glass by the stem, let waiter pour a little bit. Life it to eye level and pretend to look at colour. Make comments like "it's quite clear" or "it's cloudy" or simply "nice color"
4) Take a sip, slosh it around your mouth for a few seconds, give it a pause and then swallow it. Make an hmmm with appreciative head nod. Dish out comments like "Nice, a hint of tobacco, huh? brilliant" Google up a list of wine fruits and use interchangeably.
5) Pretend to be classy. Never gulp. Never drain the glass in one go. Never put ice or mix with organe juice or cola
It's all presentation and not much content.
Congrats, you are a connoisseur now!