What do you do to go to hell?

Answer 1

Go through your life having been told that God exists or seen/felt evidence of him but never decide to believe in him, give Him control of your life or get to know His heart for you and others. In other words, rejecting his forgivness for your sin.

Answer 2

Different people have different ideas of what will mean you go hell, but you can only go to hell if hell actually exists - something that has never been proven. It is all very well striking fear into the hearts of gullible people, telling them "believe what I tell you or suffer the consequences," but this should be an idle threat unless followed up with indisputable evidence that hell exists.