Members of Pi Phi cheer before new members open their envelopes. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

Girls gather on the Knight Library lawn as Bid Day activities begin. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

A rho gamma embraces two new members on the last day of recruitment. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

Rho gammas hide their Greek letters before revealing them to their recruitment groups. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

New members cheer as their rho gammas reveal their sororities. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

Rho gammas perform individual cheers for each sorority. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

A rho gamma hugs one of her potential new members as they anticipate opening bids. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

New members take Snapchats as they open their bids. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

New sorority members run to their houses after receiving bids. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

Members of Kappa Kappa Gamma celebrate Bid Day. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

New members hug their sorority sisters after opening their envelopes. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)

New members of Delta Gamma celebrate after recieving their bids. Potential new members of University of Oregon’s sororities open their envelopes on Bid Day on the Knight Library lawn in Eugene, Ore. on Tuesday Oct. 10, 2017. (Natalie Waitt-Gibson/Emerald)