Snapped to attention, with "up"

Usage examples of perked.

The other miners perked up at that and began talking happily among themselves, hoping that there were new apprentices in the caravan or wondering whether the traders brought some of the things they'd been missing, such as new fabrics—"for the wife"—or pickaxes—"never can have enough.

As Genevieve had perked up during the spaceplane flight, so Louise had felt gradually worse.

It wasn’t the pure sunlight which shone upon towns and larger groups of possessed, but the plants gleefully absorbed the increased rain of photons, and perked up accordingly.

The dog's ears perked forward at that voice and the command, and with a small bark he bounded toward Kell, his tail actually wagging.

A carroty redhead couldn’t have worn the color, but Faith’s hair was a dark, almost wine-colored red, and the knowledge that she looked good in the pink perked up her spirits.

Tink's ears perked up, because he was accus­tomed to that sweet tone being used when she spoke to him.

He imagined it so well that his Johnson perked up and began to swell, requiring a firm hand to keep it under control.

He didn't notice Wynn's peculiar study of him and looked up at Magiere with perked ears.

He lifted his head with perked ears, looking to Wynn, but the young sage had her own head down.

He pulled his head back and whined again, then perked his ears in a quizzical expression.

The last things she saw as it closed were Chap's perked ears and astonished face.

Her ears perked for the sounds of familiar hound song, disregarding the fact that those voices were behind her and lost forever.

Which, on second thought, she decided to do, and found that it not only made him cock his head from side to side and back again, but his big ears somehow perked so intently that they looked bigger than ever.

The dun—Lady, they called her, when she was her horse self—stopped in the middle of the aisle, shook vigorously, and lifted her head with perked ears to scent the air.

The great panther crouched on a ledge to the side, watching the fight, but more than that, watching back toward the east, her ears perked up.