How do you guys approach, i don't want the generic answers ( you see a girl you approach her ) , but i wanna know about signs of interest , body language, who to approach, who to not approach, when to approach, when to not , i want to go full details, because just approaching with no prior knowledge, you wouldn't know if you did good or not , and you wouldn't always gether number, but you wouldn't consider those approaches where you didn't get the number as failed approach right?? Finally it will be good having the knowledge then practicing it ,then just going randomly.