Conducting workouts with players, looking at rosters, looking at available players, etc. They might even be speaking with NFL team reporters and indicating a bunch of players they are looking at for various positions.

He might not be doing anything but evaluators might be considering him. It’s right before the combine, too, and he did receive an invite.

Finally, it could be an agent promo thing. He’s likely working out at a combine prep / conditioning camp. Previous VT players have come out of that in seemingly better physical condition, etc. so it could be more info available about his recent prep. Probably a combination of things.