There are certain courtesies expected even of a cub, and it's better to make contact with the local werewolves on your own terms than to stumble into them. Even if the werewolves of Broad Brook all died, new Garou might have moved in by now. Tradition dictates that you perform the Howl of Introduction. Scarper taught you the Howl, and how important it was for a galliard to greet other werewolves boldly and with eloquence.
If you'd prefer to be more discreet, you could look for glyphs. Some Garou mark their territory with a unique system of signs and scratches. Scarper taught you the glyphs along with the Primal Tongue, and with enough patience, you might be able to track the marks and symbols to a Caern or some other werewolf community.
But glyphs are old-fashioned, and not all Garou bother with them anymore. A smart young werewolf could go online and search for evidence of Garou—anything from news articles about "animal attacks" to deliberate hints and riddles left by urban wolves to help facilitate contact. Also, many city wolves move among an urban population's indigent and criminal communities: if you were able to stay cool around them, they might help you.
I Change into my lupus form and chant the Howl of Introduction.
I patiently seek out Garou glyphs and decipher the signs to find other werewolves.
I get online and look for evidence of Garou activity in town—deliberately planted or otherwise.
I act cool and casual around the local transient population. Maybe some of these fringers know about the Garou and can lead me to other werewolves.
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