" perking up "

1: to become glad or hopeful;

  * e.g., " ... we perked up once the sun came out "

•  Synonyms : 

•  brightening,

•  bucking up,

•  cheering (up),

•  lightening,

•  looking up

•  Antonyms : 

•  darkening,

•  saddening

2: to move from a lower to a higher place or position;

  * e.g., " ... the dog tilts her head and perks up her ears whenever someone speaks to her "

•  Synonyms : 

•  boosting,

•  craning,

•  elevating,

•  heaving,

•  hefting,

•  heightening,

•  hiking,

•  hoisting,

•  jacking (up),

•  lifting,

•  picking up,

•  raising,

•  taking up,

•  upholding,

•  uplifting,

•  upping,

•  upraising

•  Antonyms : 

•  dropping,

•  lowering