Letters that make perked up
d, e, k, p, r, u are letters that make 'perked up'
d, e, k, p, r, u are letters that make 'perked up'
1 possible definitions for 'perked up'
Under this definition, perked up is an adjective and has the following properties:
enlivened is similar to perked up.
"his attention made her feel all perked up"