The Visitor is a confusing game to play. If this is your first time, you'll need a figure out how to play this game. Moreover, this game is like a puzzle with no objectives and mission given.
There's no intro and no instruction given on how to play this game and how to finish it.
So, as per my own words, you need to complete the task by clicking on the object in order to perform a certain task and complete it.
If you have much time to leisure and want to invest in some creative work, play this game.