Many if not most if not all people have secrets. But in fact there are no secrets. Even the secrets people take to the grave are not secret. Everything is known, in at least one Reality.
So don't be like an ostrich burying its head in the sand. Being unable to see does not mean being unable to be seen.
In private, people let their hair down; they take the opportunity to "be themselves". When no-one else is around, people pick their noses, masturbate, piss in the shower, eat gluttonously, murder their spouses, beat their children --- do all the stuff they don't want anyone to see or know about.
But every action of every life at every moment is recorded in cosmic memory -- the Akashic Record if you prefer --- and all actions elicit the appropriate Karma when the activity is performed or at some point in the future.
Every action is observed by ETI, and frequently by other observers, somewhere, somewhen, somehow. The Observer creates Reality, collapses the wave function, causes a cloud of uncertain stochasticity to congeal into a certain lump of definitiveness. Not to mention that entangled particles know what each is doing, instantaneously, even if spatially separated at opposing ends of the Universe. But don't take my word for it. I'ts just the weird, wired, wacky world of quantum physics.
As the Buddhist said to the hotdog vendor: "make me one with everything".