Do you actually "drink " the wine at a wine tasting event?

[The Uncola]

What is the proper etiquette?

[viv]

You don't drink it. You taste it and if you like it, then you drink it. That is the best etiquette. Its not an empty advise. I have done and so have my friends so I think its ok.

[Bonnie ?]

The option to spit it out will be available at a wine tasting room. I prefer to drink a small amount of a few choices to spitting. Both are acceptable. It you want to sample a large variety then I recommend you stand near the spittoon. If it is at a home and a spittoon is not offered then stick to only a few wines.

[mx3baby]

You drink it to taste it, but you spit it out. If you drank everything you tasted you'd end up drunk.

[marlio]

Generally speaking, you drink the samples at a wine tasting. The servings are usually small enough that you can taste alot of wines without getting drunk.