After you play this through once including the notes in parentheses, play it again omitting them. This should leave you feeling nice and tidy, and raring to watch the old cartoon.
E |----------------------|--------------------------------|
B |----------------------|-------------------3-2----------|
G |----------------------|-------------(4-3)--------------|
D |------0-2-4-0-3---2-0-|------0-2-4---------------------|
A |--2-4-----------4-----|--2-4---------------------------|
E |----------------------|--------------------------------|
|