What should I watch besides QR visits on an English menu?
Besides the visits, what is watched is how many switch to English, whether they order the dish on that card and whether they ask what it is. The visit does not say whether the line worked. Across three services note one switch to English, one order and one question about what the dish was. In Madrid only the counter is watched and nobody knows whether the English is used. From those services it remains who switched, what they ordered and what was unclear.