Sometimes, even with everything switched on, your Mac will play hard to get. If you’re seeing your own device but not a friend’s, try this: restart both computers. It’s the oldest trick in the book, but it works like a charm.
Another sneaky culprit: Firewall settings. Go to System Settings > Network > Firewall and ensure it’s not blocking “All incoming connections.” A strict firewall is like a bouncer who hates spontaneous dance-offs.
And yes, your Mac must be awake with the screen on. AirDrop can’t read your mind while your laptop is sleeping. It’s not that advanced—yet.