Gross. The biggest unwritten rule of going to the gym is you never initiate with someone wearing headphones unless it's truly an emergency.

But yeah, everyone is different, so finding an activity that works for you is super important. For me, it's crossing off other things on my list while doing an activity I dislike (e.g. I listen to podcasts and books while doing yardwork, fixing my car, commuting, exercising, etc).