Have you ever lost your phone? I have. I sometimes find myself distracted and I simply forget where I left my phone. This happens to me more than I’d care to admit.
Luckily, most people would happily return your phone to you if they found it. They just need to know who to return it to.
A colleague once taught me a nice little trick. Always have an alternative way of contacting you on your lock screen. The easiest is to show your email address. Every phone has this option. You may have to dig a bit into your settings to find it. For the few minutes that search takes, it’s worth it. If all else fails, you can replace your locked screen wallpaper with one showing your email address, or the phone number of a close contact.