How to pronounce 玩手機 in Cantonese (2 out of 4):

喂!唔好玩手機呀!
Oh, don't play with your phone!

Cantonese Sentence Breakdown

wai6
hey, an interjection to call for attention
to express one's dissatisfaction
to try and make a suggestion
to feed (an animal, baby, invalid etc)
唔好 m4 hou2
(phrase) don't.
玩手機 waan2 sau2 gei1
to play with a smartphone
haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)