"mo hei"?

[Corina]

Hey All

I wanted to ask if one says "mo hei" to describe a cereal drink does it mean that it has no froth?

[Terence]

mou5 hei3 無氣 no sparkling

[esther gan]

Hi, how do you say 'mind the gap' in cantonese?
thanks

[Terence]

siu2 sam1 tiu4 laa3 小心條罅 or tai2 zyu6 tiu4 laa3 睇住條罅