A champagne tasting at home doesn’t need a long guest list or special gear....

https://wiki-neon.win/index.php/Champagne_Tasting_at_Home:_What_Should_I_Serve_as_Snacks%3F

A champagne tasting at home doesn’t need a long guest list or special gear. Chill each bottle to 8 to 10°C, pour modest tastes, and give everyone a glass of water between sips