to follow him/her, to keep up with him/her
Él andaba tan deprisa que ella no podía seguirle el ritmo.
He was walking so fast that she couldn't keep up with him.
Le costó seguirle el ritmo a sus compañeros de clase.
He struggled to keep up with his classmates.
Yo no sabía si negarlo o seguirle la corriente.
I didn't know whether to deny it or play along.
— Crímenes de familia (2020)