Generally I like to give a physical description without saying a species. Have your character(s) do human things- like drive, go to a restaurant, work, etc. If it's more fantastical you can have them wield physical weapons that require hands. Subtly mentioning any clothing could help too- maybe their feet pinch from their heels, or they tuck their pants into their combat boots. Then on top of these "mundane" descriptions you sprinkle in the unexpected clawed paws, tail, snout, etc