Said God of Mischief was trying to remain standing perfectly still and look as regal as possible, and not squirm around due to copious amounts of internal discomfort.
"You have my eternal gratitude," Loki said with a relieved sigh, taking the glass and a very generous drink soon after. "Ah, yes. This shall suffice."
While Midgardian alcohol was weak, this would suffice for the time being. It didn't taste good, but the last time he mixed 'party punch', the resulting aftermath left a worst taste in his mouth than this alcohol did.