Yep, that's anti-freeze...

Start-er up

drive to the store for whatever (to warm up the engine)

let it idle

pop the hood

grab your flashlight

see where it's leaking

can't see anything ???

do same thing with flashlight, laying on your back under the radiator/ hoses, etc.

Examine all hoses, try to follow moisture trail backwards to the scource, keep fingers & clothing AWAY from belts/ moving parts, etc.

Also, could try tracing moisture backwards without starting/ warming first.
Good Luck !