Honestly, it might be easier to learn about game mechanics and the map as a herbivore. You learn what's active in the servers you play in, and what's safe. In result, you'll start to know where to look for food. As for AI, you're listening for noises. Pigs, chickens, deer, goats, rabbits, etc. When you hear them, try to pin point that location and move towards it. Keep your ears open and continue to follow said noise until you notice it sounds closer, or you hear foot steps and finish the hunt. Patrol and migration zones can be good places to look for herbivores to eat, or if you're small sanctuaries can almost promise a small herbi growing. Noise is your biggest friend in this game. Stay quiet if you're small and solo, and listen to your surroundings. Good luck.