The rules of this game are very similar to "how honest are you?". You answer a question from the person above you, and then you ask a question in the same post.
The difference is that in this game you ask light and comfortable questions, the kinda questions you would ask someone you just met. Like, how tall are you, what are your hobbies, what kinda music do you enjoy and so on.. Everyone is welcome. You are also allowed to give vague answers if you don't want to be specific, like answering "mid twenties" to "how old are you?".
I'll start. What is your favourite colour?