Everyone was looking at him, expecting a reaction of some kind.
I hadn't expected such a reaction to an insane proposition.
She expected a reaction from the others, without knowing the exact form it would take.
She wondered if he'd expected a different reaction from her when they met again.
James looked disgruntled, as if he had expected a different reaction from her.
"We certainly did not expect a controversial public reaction like this," he said.
Anyone stepping over the line at all, even by accident, could expect a reaction.
He hadn't expected such a reaction, but it passed quickly.
One might expect a different reaction in the case of a company he plans to sell.
You can't keep kicking young people and not expect a reaction.