April 21, 2015 1:37 PM EDT

Ellen DeGeneres quizzed Courteney Cox, (aka Monica on Friends) about the hit TV show as part of a promotion for the Friends-themed version of the party game app “Heads Up!”

Cox appears nervous in the beginning, exclaiming, “I won’t remember!” For the most part, she aces the test, but she does struggle to remember the word Ross shouts as the friends help him move his new couch up the stairs to his apartment (“Pivot!”) and “Ugly Naked Guy, the neighbor across the street who always walks around naked in front of his window.

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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