I've tried to figure this out too, at first i thought it was obvious that bumble(the fatty) was the boss because bee jumped away from her a lot and hated her sniffing her bum but ive been watching them and at the moment bee is the one who rumbles and shakes her bum most and she constantly nicks food from bumbles mouth! would bumble let her do this if she was the boss? Bee still seems to have dramatic squeeks wen bumble goes into the pigloo that she's in but bumble seems very laid back and doesnt seem to know what bee is making the fuss about lol, bee follows her constantly and if i were bumble id get very annoyed! the most ive seen her do though is flick her head at her! Funny little things, they're amazing to watch! i'm sure u'l get to know in time if u look up what the signs are and look out for them x