Reading people. Simply because when you read people you are watching to see how the act, what they like to do, who they hang around, who they are, how they talk, walk, ect. You can sometimes do this before deciding on who you might want to be friends with.It helps a lot. I hope my answer helped you
It's a type of drug, I'm pretty sure it's related to ecstacy in some way. Please do not do drugs, they're very harmful to not only you and your body but the people surrounding you, stay safe!
I think B is the answer im not for sure though
