How do I not look like a bot

When making HTTP requests (mostly POST, as that's where things start to make a difference), which headers should I set (and what other things I have to do) so that a website won't think I'm a bot? User-Agent is an obvious one, but aside from that? I know that websites sometimes use JS to recognize legitimate visitors, and maybe the way cookies are handled?

>>10
Oh FFS are you guys the most unhelpful board on the Internet?
Some say "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime."

/prog/ says "Lead a man to Satori and he will transcend the need for fish." We are helping you but you just don't realise it yet.