Autograph protocol

Of course, one of the "highs" about performing is hearing the audience reaction - the laughs, the applause, the groans. And, for me, a first request for my autograph. I don't flatter myself, the young girl had a program and was trying to get as many of the cast to sign as she could. But being new to this sort of thing I was puzzled. How does one sign a program - Mr. Brownlow or Arnold Loveridge? I took the easy way out and actually signed both ways. Some day when I'm a rich and famous actor (and hell freezes over) she'll have a very valuable program.