So, in my game, I have the player enter a room with another character in it. They have their back turned, so I want to make it so the player has to talk to the character to progress in the game.

When I reach that point in testing, whenever I click "look at" or "speak to" for the character, I get this message:
Error running script: Error compiling expression 'GetObject(objectname)': FunctionCallElement: Could find not function 'GetObject(Object)'

I've tried looking through the site's documentation to no avail.

Could you copy-and-paste the code into a post here? For the character, the "Look at" description on the Setup tab. If it is script, click on Code view, and paste the code in. If it is just text, paste in the text (even plain text goes through the text processor, so it could well be there).

This is all I put for the "look at" description:
You can see white hair and pale skin. Their black dress seems to end in many tendrils slithering across the floor.

I've typed something like that for every other object in the game, but with no problems.

hmm... maybe this has to do with making the character a pov vs non-pov, in how there's two locations for the 'look/lookat', one for when a non-pov and the other for when a 'pov' ???