to cool off, to freshen up
Creo que los nuevos querrán refrescarse y descansar un rato.
I think the newcomers will want to freshen up and rest for a while.
— Los falsificadores (2007)
En verano, mucha gente usa el abanico para refrescarse.
In summer, many people use a fan to cool down.
Mi bebida necesita refrescarse.
My drink needs to be chilled.