Not really
How many do you have?
Unless you have someone who knows how "sex" them (look up their behinds) you'll have to wait until they are about six months old.
I have a male/female pair I got as goslings, and watching them grow up has shown me and made their gender differences obvious long before they LOOKED different. Mainly, the gander was taller and more friendly/attention seeking, the goose shyer and more demur. This is a pretty solid sex characteristic with geese. The gander has a higher screechier voice and the goose a lower pitched chattering voice.
My gander always has his head up in the air, scanning the environment for dangers (the dog, a marauding chicken). He's the one who advances at the possibility o a danger, while the geese hang back and egg him on.
And if all that fails, someone will start laying eggs in March or so
. THAT one is female
. If no one lays, you have a gaggle of ganders (not a bad thing in itself). It's a fact all goose lovers get to live with, the uncertaintly, unless you learn to vent sex them or find someone who knows how.