It's basically in the title already. The usage of signs is in my opinion pretty immature. We are living in the 21st century and grown people (adults) are still not able to use verbal communication? Why? I mean it would be so much easier for both sides if they play with an open hand to avoid confusion. A grown up person (adult) should be able to understand that. Not only that you are putting yourself in a potential position where you are wasting each others time by just not being direct. It just doesn't make sense no one is a mind reader. And for those who understand these signs: Congratulations you wasted your time by trying to understand people who are probably not ready for dating.