1The comedian's ad lib remarks about the current events had the audience in stitches.
2In the play, the actor's ad lib lines added a layer of realism to the dialogue.
3The script called for an ad lib section where the actors could respond spontaneously to the audience's reactions.
4Improvising an ad lib during a live broadcast can be a high-risk, high-reward strategy for comedians.
5The director encouraged the actors to experiment with ad lib during rehearsals to develop their characters' personalities.