I talk a lot about blind tasting here, but wanted to cover something that's important to do when your goal is building up tasting memory, and that is tasting 'open label'.

AKA tasting while knowing what you are tasting.

Here's why this is so important:

You can assess a wine blindly, for acidity, tannins, body, etc, but until you've tasted a broad range of wines, you have no context.

When I was just getting started learning about wine, I found it helpful to taste the flights open label first (i.e.: knowing what they were). Then, our tasting group would repeat the tasting of the same wines, but this time the wines would be bagged so we could taste blind. This helps to develop palate memory. Moreover, even when you're a relatively advanced taster, this technique is helpful to revisit.

When tasting a particular type of wine (i.e. McLaren Vale Grenache, GC Chablis, etc), note to yourself as you taste: what are the key markers or characteristics of this wine? On your tasting notes,  items that jump out at you.

After tasting several Chablis for example, do you have any flavours or characteristics that you particularly notice about these wines (here are some of mine: green apple peel on Chablis, burnt toast and lime curd on Hunter Valley Sem, grapefruit pith on Pinot Gris).

Once you ‘get’ a particular flavour or aroma, it’s like learning a new verb in another language, and as you add more and more to your lexicon, you will become fluent in your new language.

These are the tells which will later help you when you are narrowing down your list of likely wines in a blind tasting or exam. 

Should I watch the grid?

I’d also recommend open tasting while looking at your WSET grid and descriptors, and asking yourself if you sense each category while you taste.

It takes a little practice, but you will naturally memorize the different flavour camps, and eventually, will be able to run through them in your head by rote as you taste: ‘do I taste citrus, stone fruit, oak? etc.

PS: When you write your notes, be methodical about writing out the categories in the order of the tasting grid. It will help organize your thoughts as you taste (and will be helpful for the exam, because you won't miss any point categories).