Green’s Dictionary of Slang

gink n.2

[? gig n.8 (2)]

(Aus.) a look, a glance.

[Aus]S. Gore Holy Smoke 47: When old misery guts takes a gink at Shad, Mesh and Ab [...] expectin’ to see only their belt buckles and the soles of their shoes, here they are still standin’ up.
[NZ]McGill Dict. of Kiwi Sl. 49/2: gink a look; variant of geek.
[NZ]Orsman & Hurley Beaut Little Bk NZ Slang n.p.: It’s a well-known fact that Kiwis have their own way of talking, and without a guide you can easily come a greaser. Have a gink at this beaut little book, and you won't need to feel a nong any more.
[NZ]McGill Reed Dict. of N.Z. Sl. [as cit. 1988].