I'm good at hiding it in general. I get laser focused creatively at work and spend most of my time entertaining my clients. My coworkers probably just think I'm weird because I dance around a lot and climb on furniture. Sometimes they call me out for being hyper and I blame it on caffeine.
Socially it's easy. I just play the "life of the party" or drink to mask it. Also my friends love that I'm wild and eccentric. I do well hypo. When fully manic I turn into a nightmare who can't hide anything.
In therapy I can't hide anything nor do I try. My therapist can take one look at me and tell I'm unwell. My pdoc doesnt know me well enough yet