How should a server appropriately present a bottle of wine to a guest?

Presenting the bottle of wine to a guest by showing the label is an important aspect of proper wine service. This practice allows the guest to confirm that the wine being served is indeed the one they ordered, ensuring transparency and attentiveness to their dining experience. By doing so, the server not only communicates professionalism but also enhances the guest's confidence in their choice of wine.

Furthermore, serving the wine at their table after showing the label fosters an atmosphere of engagement and hospitality. It is a moment where the guest feels valued, as the server is taking the time to acknowledge their choice and provide a personalized experience.

The other options do not align with the standards of good wine service. Serving without showing the label removes the opportunity for guest confirmation, while pouring into decanters beforehand can be seen as unnecessary unless specifically requested or if the wine requires decanting for quality reasons. Leaving the bottle on the table without any presentation denies the guest the experience of seeing and confirming what they ordered.