How do I do this?
Tring to find the player character so they are ignored when Looking at them.
Player x and y coordinates are player.x and player.y accordingly.
so you want the look at command to go through the player char and look at what is behind the player and hidden by the player. Check the character properties in the editor, there is a clickable property in them, just turn it off.
Note that knowing the player's coordinates doesn't really help, unless your player sprite is 1x1 pixels.
Always ask about the actual problem (which you did), not your attempt at solving it.