yes some of them do. not all of them. but it doesn't always mean he likes you. it really just depends on the guy. some guys flirt that way, while others just do it as a "polite" way to insult. flirt back and if he does more often then he probably likes you!
Yes
just be nice even if they're total wads. if they insult you, insult them right back, but playfully. be awesomely flirty but not at the same time.
ask him questions about his family and at home life or if you already know him playfully tease
Yes, boisterous is often used as an insult because it means the person who is boisterous can be rough; may swear too much or talk too loud embarrassing not only themselves, but often times those around them. An example of the word 'boisterous' not being an insult is if two men are playfully wrestling on the grass and they are noted as 'good old boys' or 'boisterous.'
Cooties.
Negging is a term used by pick up artists such as in the book "The Game" and "The Mystery Method". It means to insult a girl playfully to increase her interest in you.
They like to look at them same thing as girls with boys.
The father playfully acted like a horse when his son was on his back.
It depends on what kind of insult it is and how he says it.
They like you.
When a boy hits you, it either means they like you or they don't think of you as a "girl". If it bothers you, playfully ask them to stop or ask them why they keep hitting you.
It depends. There was someone at my YMCA camp who I thought was flirting with me, but wasn't. So, it's all from personal experience.