"That works for me." Even if it doesn't work for him immediately that way, at least it will give them new information, right? On that front, it's worth it. Either he learns a new way of spellcasting, or they both learn that full mastery of a language is required before such things can be accomplished. He nudges the grilling meat.

"Should we work on it over food, then...?" They're both already here, after all.