ph.

1. （使）振奋；（使）活跃；（使）快活
If something perks you up or if you perk up, you become cheerful and lively, after feeling tired, bored, or depressed.

2. 使更有趣
If you perk something up, you make it more interesting.

3. （使）增加；（使）上涨；（使）增值
If sales, prices, or economies perk up, or if something perks them up, they begin to increase or improve.

1. cause to be alert and energetic

e.g. Coffee and tea stimulate me
This herbal infusion doesn't stimulate

Synonym: stimulatearousebraceenergizeenergise

2. gain or regain energy

e.g. I picked up after a nap

Synonym: perkpercolatepick upgain vigor