How to pronounce 收口 in Cantonese (5 out of 7):

記得收口位向外
Remember to close your mouth out.

Cantonese Sentence Breakdown

記得 gei3 dak1
remember
收口 sau1 hau2
to shut up (Cantonese)
wai6
position
location
place
seat
classifier for people (honorific)
classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
throne
post
rank
status
向外 hoeng3 ngoi6
outwards