How do i start a conversation on facebook with a guy I like?

I would start thos conversation like you would any other. If you don't talk to him like yourself, he's not liking you for you,he's liking you for who you're pretending to be. If he doesn't like you for who you are, its not your fault. Don't change.

At first start off with normal conversations. Hi. let him answer even if it is a short conversation. In a few days start asking a question or to but not about what he likes of anything; such as did you have a good day of anything really happen lately. After you start seeing him respond more and as the conversations get longer start to ask him more personal questions. This allows him to think about it without it being obvious that you like him at first and let's him warm up to the idea. The most important thing is to be yourself and don't jump into it right away.

just start with hi and hello or if you know about his place just talk about events or popular space around his area and ask more details and than turn up to meet up some where.

Facebook not a good place to get to know someone.

He or she could paint a very different picture as to what they are like.

Hi

You go to my "school, work, gym, area"

Are you so and so's friend bla bla

"insert whatever you want to talk about here"

just start as a friend just hi,hello than go forward what u fill about him.