How to open Gemini AI in phone?

Excuse me, could you please provide some clarity on how one might open the Gemini AI application on their phone? I'm interested in understanding the steps required to access and utilize this platform, but I'm not quite sure where to begin. Is there a specific icon I should be looking for, or is there a download process I need to follow first? Additionally, would you mind sharing any tips or recommendations for navigating the app once it's opened? Thank you in advance for your assistance.