How to determine if the llama you have encountered is, in fact, a llama; a feat not so easily accomplished. I’ve seen many a prideful person too gleefully take a hubris-laden road to a llama-y grave.
First, you must ask the creature, in these exact words: “Are you a llama?” Do not speak too softly, but neither should you shout. Speak in a nice, middling voice. And, for the love of the Grave-Keeper, emphasize the word YOU, not LLAMA.
With these formalities out of the way, if you are not dead, you have been given permission to speak with the creature. Next, you must take note of its chewing.