If you're doing that in a gym, then you're surrounded by like-minded people, so they won't think anything of it. If you're doing it in the privacy of your home, draw the curtains so the neighbours can't see you, and carry on!
My mate tried the bedroom version albags, her old man came home with a bunch of flowers for their anniversary, he went into the bedroom and there she was in the "v" position. "Whats up love he said haven't you got a vase"