However, if the subject does not know their sign, has no knowledge of horoscopes, then the series of questions must be adopted to the person's awareness or ability. The experienced occultist or manager will be able to seamlessly follow this question by turns to sports, and if that fails, to the weather. Surely, they are aware of the weather...
The final question to the unaware person was "Who hired you?" and this was followed by a sigh by yours truly, because through experience I came to realize that good managers tend to hire aware employees and poor managers hire unaware people.
The wording of "What's your sign?" presupposes the subject knows their sign and this is no different than asking "What's your name?"