Having seen kids who end their program and skate right off to the door leaving the audience wondering if the program was really over or not, I train kids to return to center for a quick bow. Russian coaches have their students move to the center to bow before leaving the ice on every practice no matter what the level. Russian coaches have their skaters always assume the presentation position after a practice jump and returning to the coach on the side. International competitions, every skater returns to the center for a bow. Interesting fact, in competition, the next skater is only supposed to be let onto the ice after the skater before has completed their bow. This is totally ignored in local competition in order to process through as many skaters as possible. In internationals, watch the ice dancers, bowing is a competition on it's own.. twirl twirl bow, twirl twirl bow, all four directions then a wave to the first direction and then they start moving to the door. Only then can the next pair go on, and it's a bit of a psych out game. That's why there is the rule about "undue delay". Heh.