[Callers] "Assigning" roles in the beginners' lesson?

Hey there, hive mind, When you're calling larks and robins, during the lesson, how do you a. explain the roles to the new folks, and b. put the beginners into roles for the duration of the lesson? I've seen "try swinging in both roles and see which feels better", I've seen "unless you have a preference, whoever is standing on the right of your partnership is the robin for now", I've seen "pick whichever bird you like better", I've seen "the robin's role is a little easier so do that if you feel less confident"... I'm curious what folks here do and in what kind of distribution, and how you find it works for you in practice. (Please please please let's not relitigate gender-free contra or the bird terms in this thread. If you really must, please make a separate thread.) Swingingly, Maia -- Maia McCormick (she/her) 917.279.8194