After going in they give you a key to a locker, where you get changed and you can store your stuff. The men walk around in normally just a towel, which the Club provides. The afternoons tend to be quieter than the evenings and normally there are no swinging couples present just the advertised ladies. As regards etiquette, then as long as the lady is free (one end or the other) then just get in there (unless there is someone clearly waiting nearby, or the lady says no as she is going on a break). On my first visit I sat around watching and one of the girls kindly called me over to play and at one point I ended up with a short two girl session which was memorable!