Just after Ross tells Monica that Aunt Sylvia passed away Monica stands and starts saying "Yes, yes yes" and pumping her fist. The camera changes angles and again you see Monica standing and begin to pump her fist with no words heard.
Lauren tells Joey that she used to schedule her classes around the airing of Days of Our Lives so she could watch him as Dr. Drake Ramoray. But Joey only played that role (initially) from January to March of the previous year, meaning she could not have registered for classes for a semester based on Joey's TV appearances.