I’ve got a mate who was in Belgium, and wanted a travel adapter to charge his phone or something. He went into a pharmacy and, not speaking the language, said to the guy behind the counter, “er… travel adapter?”
The guy just looked at him, so my mate repeated it slower (classic British person abroad strategy), while making a gesture with his hands that was the left hand flat like a wall, the right with all five fingers in like a spider position pressing against the left (supposed to resemble a plug, I assume).
The guy behind the counter said in perfect English, “Yes, I understand you, but this is a pharmacy.”