Pickman's model
Starry Wisdom
it's a very useful way to find out someone's birthday, you start with that and it's a quick answer. if you read 'the operators' about british intelligence in the six counties you'll see that as part of an exercise they're sent out to get someone to tell them their name, date of birth, address and something else i forget. you should be aware that people who are talking to you aren't always asking innocently and may be seeking information on you for their own nefarious purposes.As an aside, on an outing to a singles night earlier this year I was quite horrified to find myself asked many times what my star sign is. I had no idea that any adult would actually ask that question. Morons the lot of them.