Oh, there is no guessing, you know, or you don't know. Signs are heart rate increased, flushed skin, nipples erect, saying "thank you Jesus!!!" or inability to talk cause you can't uncurl your toes.
If you want to know if a woman is lying, well you can't really, just do your best and really, it is up to her to orgasm, you can't force them on a woman, really, if she is coming, gushes of lubrication.
If you want to know if a woman is lying, well you can't really, just do your best and really, it is up to her to orgasm, you can't force them on a woman, really, if she is coming, gushes of lubrication.