Except in this case, and unlike running to 2B or 3B, it's unusual to run fully in fair territory to 1B. There's only one reason someone does it, and that's to screw up a play.
I would guess without any data, that most right handed batter run primarily in fair territory to first base. So I wouldn’t think that act by itself would show any intent.
Sent from my iPhone using Tapatalk