I'm going to ghost this guy I've been talking to from a dating app
How do you plan on ghosting him.
I'm going to kiss him and close the door behind me
Well ghosting someone you have never met before isnt the worst thing in the world. Kissing them and then closing the door to ghost them sounds like you are playing with their emotions just for the heck of it.
I know but I just want to get under his skin and see how he reacts.
It is okay to not want to continue contact with people but ghosting them is bad. Also letting them think that you have feelings for them and disappearing can be damaging to a person.