The audience is not reacting, for the most part, on a matter of principle.
At the mention of the child's name, she reacted for the first time.
He reacted instinctively, for reasons I might never fully understand.
It took several more minutes before the little Japanese reacted to his surroundings for the first time.
She did not react at all for three long seconds.
The 30-second spot features several women reacting to their children's requests for money.
If nothing else, we'll have them reacting to us for a change.
"But we've got to find a way to push these guys off their game, to make them react to our moves for a change."
It happened so quickly she had no time to react or reach for her mace.
Such stuff was generally available, but usually priced far out of react for most people.