If the wine is pleasant, try and relate the smell to something you like. Does it smell fresh, fresh fruit or berries, nuts or flowers or spicy. Your taste will be affected by the smell. The first impression will be the sweetness in the wine. The sensation is short and intense.
Acidity is slower to reveal itself but lasts longer.
Note the presence of the taste associated with the smell. Reflect upon the aftertaste. The longer the aftertaste lingers, the better the wine. The taste of wine can be affected by your mood. The word toasting comes from the 17th.