Bouquet is the smells the winemaker has added. Oak aging lends the scent of vanilla or cedar, like pencil shavings. Using your score sheet, write down your first, strongest impression. Then come back a few minutes later and sniff again, even more slowly. Some of the best wines change in scent as they warm in the glass.
White wines can take on aromas of menthol, hazelnut, honey, caramel, cinnamon.
And, yes, friends make fun of me for going on about all the aromas I find in a wine. I know a taster who vows a good zinfandel smells like fruitcake. Take a small swig of wine, filling your mouth about a quarter full. Then move the wine around in your mouth, letting it warm as it slithers around your tongue and over your palate. If you want to go gonzo here, you can even slurp air into your mouth over the top of the wine and breath out through your nose again, picking up more sensations.