How do I AirDrop someone?

Excuse me, could you please assist me with a question? I'm trying to understand how to use AirDrop to send files to someone, but I'm a bit confused about the process. Could you explain to me, step by step, how to go about it? For instance, do I need to have both Bluetooth and Wi-Fi enabled? Is there a specific setting I need to adjust? Also, how do I select the person I want to send the file to? And what types of files are supported by AirDrop? I'd really appreciate your help in clarifying this for me.