If possible get a radio mike with headset. That way you can continue calling, but be down amid the action when it's called for.

Two points - if you get down amongst the novices, wear something noticeable and make it clear to who it is to who you are talking. And who you are not talking to. A disjointed voice commanding you to "whatever" can be a surprise.

As it happens - I have collected a load of callers' tips on my website mostly from E-Ceilidh e-mail forum - which is useful to be on.
Another page with useful links