When someone’s talking to you, and you hear them and realize they’re addressing you, but they didn’t catch your attention first so you weren’t focusing on it well enough to properly comprehend what they’ve been saying. So you turn to them and ask if they’re talking to you, just to clarify so you can ask them to repeat themselves if needed, and get a Look Of Befuddlement like, “You’re not even that far away, can’t you hear me?”. Haha
To be fair, I’m not sure how much she knows about my hearing loss, and she was only a few feet away and slightly stressed because we were in the middle of setting up for a fundraiser and she was trying to give me instructions... but I was already focused on something else when she started talking to me and I needed to give her my full attention in order to comprehend said instructions. :P