the entire ensemble bows together, no singling out of any leads. then they acknowledge the band, and exit. of course, they return, bow again, and exit (for real.) no special attention is given to any lead.
the only exception i could think of would be the actor who plays angel. he re-enters near the end of finale b. some people (or maybe just me and a few select others) stand at the point where he comes back in, but that's it.
forget regret...