T-shirt for People who Learn Luxembourgish Tシャツ

Rumour has it that Luxembourgers don't always make it easy for foreigners trying to learn the language. As soon as you gather the courage to try a newly learnt Luxembourgish sentence, they reply in English, or French, or German... anything but Luxembourgish. Why not remind Luxembourgers to reply in Luxembourgish? Schwätzt Lëtzebuergesch mat mir, ech léieren. Speak Luxembourgish to me, I'm learning.