To read a script out loud casually with other actors but without blocking
To thoroughly read something to check or proofread it
To read and obey a signal that is beyond the applicable one (often mistakenly)
To rehearse (something) casually.
Used other than figuratively or idiomatically: see walk, through.
To explain (something) to (someone), step by step.
To perform (something) with ease or perfunctorily.