Here are the steps to run Llama 3.2 on Ollama in MacOS:
Firstly, install Ollama from this post: https://www.metriccoders.com/post/how-to-install-and-run-ollama-on-macos or just by downloading it from https://ollama.com/
Secondly, go to Launchpad in MacOS and type ollama and click on the icon. It will start. You can see an icon on the menu bar of your desktop
Thirdly, open the terminal in MacOS and type ollama pull llama3.2
After downloading, type the command ollama run llama3.2
You will be presented with a prompt. Ask whatever question you want to ask like Why do birds chirp?
You'll get your answer