Everyone loves sharing their favorite music with their friends. It may seem like listening with AirPods or other wireless headphones makes sharing impossible, but that’s not true. If you have an iPhone or iPad, and AirPods or other wireless headphone models, you can share audio on iOS 13 using built-in features. Here’s how.
How to share audio with two sets of wireless headphones – Apple Support
If you want to share AirPod audio, the easiest way to do so is if your friend's AirPods are still in their charging case. In that case, follow these steps to share AirPod audio:
Start by putting your AirPods in your ears. You can either listen to audio or not. Both are fine.
Have your friend hold his or her AirPods close to your iPhone or iPad and open the lid of the charging case.