Among those recruiting was the Jack Frost Morris Dancing club.
President Pont Lurcock enticed students by telling them the club would allow them to "jump up and down, sing rude songs and wave a bloody great stick around".
By noon, 20 new students had signed up to the group, which would have "doubled" its size, he said.
The dancers met once a week for practice and were often booked to perform at churches, schools and retirement homes.
"I enjoy the fact that it's just serious enough to be an actual thing but silly enough to be fun."
He described the Clubs and Socs day as "busy and hot", with students walking around "dazed and confused" by all that was on offer.
As well as being home to different student groups, the Clubs and Societies Centre provides students with many facilities, including a sauna, craft workshop, squash courts and pool and snooker tables, and $3 lunches starting on Monday.
Free use of meeting rooms, showers, dance and exercise space and pianos was also available, and recreation courses were run throughout the year.
Centre manager Ross Blanch said the centre was owned and operated by OUSA and provided a "very popular" service for students.
The courses included everything from Tibetan dance to life drawing in five-week blocks.
They provided students with an opportunity to give different activities a go, he said.