我係出面等你吖
I'm waiting outside for you to come.

Cantonese Sentence Breakdown

我 ngo5
I
me
my
us
we
our
self
係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
出面 ceot1 min2
(adverb, adjective) outside
等 ting2
sort
kind
type
你 nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
吖 aa1
phonetic a, similar to 呵
-azine, see 吖嗪āqín [吖嗪]
final particle expressing consent and denial, liveliness and irritation