Popsugar Entertainment Halloween This Is Us Costumes This Is Us Costume Ideas For the Die-Hard Fans With a Lot of Feelings October 17, 2017 by Laura Marie Meyers View On One Page Photo 7 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Randall and Beth What to wear for Randall: A plaid collared shirt, slacks, and glasses. What to wear for Beth: A sweater or cardigan with jeans. How to act: Tease and flirt with each other, finishing each other's sentences. Previous Next Start Slideshow HalloweenThis Is UsHalloween CostumesGroup Halloween CostumesPop Culture Halloween CostumesTVHalloween Entertainment