Melissa Rauch

Pam's contractions begin but she and Jim are determined to wait it out as long as possible so they can have more time at the hospital. The rest of the office crew try to distract Pam from the pain with food and entertainment. Back at the office, Erin makes Andy jealous.

Penny gets help from Sheldon in order to understand what Leonard's work is, while Wolowitz develops a jealousy when Leonard starts hanging out with his new girlfriend.

After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.

Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university mixer.

Hoping it will make him a better teacher, Sheldon has Penny give him acting lessons. Raj has fantasies about a friend's girlfriend.

Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.