Lina Inverse: Would pull and pull and pull, and get Gourry to do it when it wouldn't come out.
Gourry: Would look stupidly at the bottle Lina handed him, then get pounded as he hacked it to bits with Hikari no Ken, thinking it was evil.
Lina: Would get a new bottle and pull the cork out with her teeth.
Amelia Wil Telsa Seyroon: Would spout Justice speeches until the cork had to pop in order to escape her rants. The entire contents would unferment because of her.
Gourry Gabriev: Would wonder what the heck it was, ask Lina what it was, then get pounded because of his stupidity.
Shypheel: Would ask Gourry-sama to open it for her.
Gourry: Would pull the cork out with his teeth.
Rezo Akahoushi: Would examine the bottle, try to figure out what it was by touch, then call in Eris to open it.
Eris: Would pull and pull and pull and so on for an hour before getting ticked because it wouldn't open, then make a clone of the cork and hope it destroys the first.
Rezo: Would be very thirsty and opt to just get a glass of water instead of waiting for Eris.
Koppi Rezo: Would pull it out with his teeth just to prove that he's better than the original.
Naga the White Serpent: Would laugh. The bottle neck would shatter because of the high pitches, and she would down it as soon as she could.
Martina: Would threaten to put the curse of Zomalgustar on the bottle if it didn't open, and put curse after backfiring curse on it until she just switched her attention to glomping Zangulas.
Zangulas: Would challenge the bottle to a duel that would last for hours and hours, until he was defeated in a very humiliating manner.
Xellos Metallium: Would get into a staring contest with the bottle, lose, and then call on Valgarv.
Valgarv: Would come just to laugh at Xellos.
Xellos: Would use Val's horn as a corkscrew, and grin while drinking even as Val beats him into a bloody, wine-filled pulp.
Valgarv: Would swear at the bottle until it didn't dare not opening, for fear of hearing combinations of obscenities that would shatter its delicate glass structure.
Firia Ul Coup: Would call Xellos, who'd come out of curiosity, and then break the neck over his head before pouring contents into a homemade goblet.
Gaav: Would summon Val and ask him to get it open.
Val: Would pull and pull and then just stab the cork with a sharp tooth and pull it out.
Phibrizo: Would pull and pull and pull and pull until Gaav took it away, saying that he was too young for wine. (See above for how Gaav gets it open)
Zelas Metallium: Would summon Xellos to open it, then chug Zelfilian wine while watching him try different methods.
Lord of Nightmares: Would possess Lina, and get her to open it with Nightmare Magic.
Lina: Would almost blow up the world in the process.
Zelgadis Greywers: Would sigh, roll his eyes, shake the bottle, and watch the cork pop out.
Everyone else: Would attack Zel for not showing up in the beginning to do that.