CarlosAlberto: You have the right idea about second acting a show. it is better to try it in weather that doesn't require a coat, since most people coming outside during intermission would leave their coat at their seat. You should arrive in front of the theatre when people have already stepped outside, then you mingle with them, and go into the theatre as others are doing the same. As I said, it is better to pick a show that does not sell out, so you can sit down at the rear of the orchestra--standing at the rear of the orchestra only draws attention to yourself. Yes, it is risky, but the worst that can happen to you is to be thrown out which is what happened to me decades ago at the Shubert when I tried to stand at the rear of the orchestra and could not produce a ticket stub. That was the last time I tried to second act a show. Today, you would have to produce the entire ticket, which had been scanned, if asked. The things that people do when under the influence of that "false courage" better known as alcohol!!!
"Madam Rose...and her daughter...Gypsy!"