Blind tasting. The only way this works is by tasting blind. We can't help it. We are influenced by what we see. If you want to study wine and be honest with yourself, hide the damn bottles.
Go through whatever tasting regimen you feel comfortable with. Take copious notes. Wage wild ass guesses as to what the wines might be. Do not fear being wrong. We are all wrong more often than we like to admit. This is not a competition folks. It's fun, and should be fun. Not scary or intimidating.
It can be tough to taste blind when you're in charge of the tastings so here's a tip. Buy the wine a few months in advance. remove the capsules from each bottle, then wrap each bottle in foil, number them in the order they are to be tasted, and put them away in a case. By the time you get around to tasting them you'll have forgotten most of what's in the case, and certainly the order.
Don't peak at the corks while opening the bottles!