Characters
I couldn’t have put it better myself, Jan. But I’ll try anyway.
— Mike • The Brady Bunch Movie

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker tells Jan the point could not have been expressed better, then immediately promises to try. The second sentence undercuts the apparent modesty of the compliment. The joke lies in acknowledging that further words are unnecessary while still being unwilling to surrender the chance to speak.
Context reviewed