After Michelle takes the cookie out of Joey's pocket Joey says to Jesse "You want a cookie?" To which Jesse answers "I'll cookie you."
This same joke was used in the Season one episode "But Seriously Folks" during Joey's comedy act.
During the epilogue , D.J. hugs Danny. The hug is shown from two different angles, and each time, D.J.'s hands are in a different position, indicating that the hug was filmed twice.