My 7 year old made the mask and had the CM from each country write down and tell him how to say "Hello" in their language. At the UK pavillion, the CM was Welsh, so she even told him in Welsh (after I mentioned his mission). The CMs in China, Japan and Morocco were especially helpful and nice, writing in both their own alphabets and the phonetic Roman letters for us; he's got his name written in Japanese, Chinese, and Arabic too.