Hi, I just had a look at your project.
There is no cursor, because you hadn't assigned a cursor to your "walk"-command. You did for your other commands, but not for the "walk".
The verb coin works fine. You just need an object to interact with. I created an object (a rock) with object area and interaction position.
And put some actions for your commands in. And everything works.
If you want to interact with the other character, you have to to tick the "use on objects and characters"-box on your walk command properties