Charlie and Ray are at a restaurant for breakfast, and Ray irritates Charlie with his repetitive behavior. Ray states that he needs his toothpicks even though he will be eating pancakes. He also demonstrates his savant memory by matching the waitress' name to her phone number in the phone book.
Raymond expressed visual and verbal stimming as he's not comfortable with Charlie touching his personal belongings. Stimming is shown through his hand movements and reciting his knowledge of baseball. There's a clear difference between their behaviors.