Bearded lady or lady-ish bear?

Here's some footage of New York-based actor Matt Bittner ostensibly doing his "super excited" girl voice while fooling around after a recent show. I say "ostensibly" because, I don't know, it's so good that it kind of strains credulity. 

Like, how can I tell whether this is a man doing a really, really convincing impression of a woman, or a woman in a really, really convincing man costume? Either option seems equally plausible.

Sources: Ryan Clark | h/t redditor pipeylongcoughings