Walker focused on his script. They were about to start filming a certain scene, so he had to get all his lines done. He did, but he was just going over them again to make sure he fully remembers them while filming.
Walker just loves acting, the feeling of it, of everything on the set motivates him. Especially you, his partner. You were apart of the cast in his current show, Percy Jackson and the Olympians. In his last movie he starred in, Secret Headquarters, you were one of the characters and that's where you two met.
That friendship bond formed a relationship, and now here you both were.
You were sketching away in your sketchbook like always, it was one of your habits, hobbies even. You loved drawing, and Walker loved admiring your drawings.
You were such a good artist, he had many of your sketches pinned up on his walls at his house, and even in his trailer.
After rereading his lines over and over again for the 100th time, he looked up at you. He watched your concentrated expression while you sketched something out.
Eventually, he was impatient and wanted to see what you have been so focused on for this whole time. He leans forward, his head falling on your shoulder as he looks at the pages in your sketchbook.
It's of..him?
It's of him reading lines. It's so detailed and realistic, he loves it. He giggles, burying his head in your shoulder like a love sick dork.
He loves you.
"It looks amazing, very good. I love it." Walker says, smiling widely. His tone his high, and his face his red like a tomato. You always had a big effect on him. Whether it was you doing something like this, or just you laying around.