放長雙眼睇 (fong3 coeng4 soeng1 ngaan5 tai2) — just watch; open your eyes and take a good look in Cantonese
fong˗₃放coengˎ₄長soengˉ¹雙ngaanˏ₅眼taiˊ²睇简 放长双眼睇
Mandarin Pinyin: fang4 chang2 shuang1 yan3 di4
Meaning of 放長雙眼睇
nounjust watch; open your eyes and take a good look