We do know that sharks follow the bait stream.
The shark follows plankton concentrations in the water column and is therefore often visible at the surface.
See, my good Lord, the sharks, as ever, follow in your wake.
It jumped over us, booming; the shark followed, close enough to touch.
The shark follows the water skiers into the park and throws the gate off its rails while it is closing.
Contriving to squeeze past Kate when there was more than enough room to walk around, the shark followed.
The shark followed the movement, rising up out of the water, its teeth snapping the air an inch from Haki' s knee.
The most basic rule is the one that sharks also follow: keep moving, no matter what.
If he went inside, the shark would simply follow him.