hesitate about something
hesitate over something

Just as you hesitated about our meeting in your own realm.

"I never knew you to hesitate about a bit of overtime."

But the thought of the dark men, waiting with their machetes, made him hesitate about the climb.

There were three others, Jane says, which they hesitated about some time.

While still writing the opening of the chapter, my father hesitated about the structure.

He hesitated about it, but kept his bow and quiver close at hand.

Susan complied, although she hesitated about the purpose of the visit.

One was at a debate in suburban Dallas last week, when she hesitated over the question about minority role models.

She hesitated about the books, and finally she let them stay on the shelves.

I couldn't recall ever seeing her hesitate about anything before, much less this long.