1perk 
/ˈpɚk/ verb
perks; perked; perk·ing /ˈpɚk/ verb Meaning:
perk up
[phrasal verb] informal 1 a : to become more lively or cheerful
▪ We perked up when we heard the good news.
b perk (someone) up or perk up (someone) : to make (someone) more lively or cheerful
▪ The good news perked everyone up. 2 perk (something) up or perk up (something) : to make (something) fresher or more appealing
▪ The new paint job really perked up the room. 3 chiefly US a perk (ears) up or perk up (ears) of an animal : to lift (the ears) in a quick or alert way
▪ The dog heard its name and perked up its ears. — sometimes used without up ▪ The dog perked its ears. — often used figuratively of a person ▪ I perked up my ears [=I began to listen closely] when I heard his name mentioned.
b of ears : to be lifted in a quick and alert way
▪ The dog's ears perked up. — often used figuratively of a person ▪ My ears perked up [=I began to listen closely] when she said she knew my brother.
▪ We perked up when we heard the good news.
b perk (someone) up or perk up (someone) : to make (someone) more lively or cheerful
▪ The good news perked everyone up.
▪ The new paint job really perked up the room.
▪ The dog heard its name and perked up its ears. — sometimes used without up ▪ The dog perked its ears. — often used figuratively of a person ▪ I perked up my ears [=I began to listen closely] when I heard his name mentioned.
b of ears : to be lifted in a quick and alert way
▪ The dog's ears perked up. — often used figuratively of a person ▪ My ears perked up [=I began to listen closely] when she said she knew my brother.
— compare 2perk
