To express approval, especially by clapping
To express warm approval of
I applaud your anonymity.
I can only applaud this man's ability to deduce.
The spectators applaud or hiss according as they make their bow well or ill.
Ironically, he seems to applaud their duplicity because it will, his characters believe, be spiritually edifying.
Not that everybody doesn't applaud the mother of two for working really hard to get her life and career back on track, but doesn't she ever get out and meet someone new?