One of the secrets posted on PostSecret.com.

“I serve decaf to customers who are rude to me.”

This secret was written on a Starbucks coffee cup and sent to Frank Warren, founder of PostSecret.com. It’s also his favorite secret.

Warren will speak in the Molly Shi Ballroom in the Oklahoma Memorial Union at 8 p.m. tonight. PostSecret.com is “an ongoing community art project where people mail in their secrets anonymously on one side of a postcard,” according to the site.

In the site’s initial stages, Warren printed self-addressed postcards and passed them around Washington D.C., asking people to decorate and write a secret on the card.

Warren said he receives around 1,000 postcards each week.

“I asked [people] to share a secret with me and they never stopped coming,” Warren said.

Sometimes secrets are hopeful or grateful: “I wish I could personally thank the kind, selfless souls who donated their bodies so that I could become a doctor.”

Secrets can also be disturbing, sexual or sad.

“I’ve lost hope that there is anything out there discovering,” is the message scrawled on one card Warren received.

Warren updates PostSecret.com weekly, choosing 20 cards to put on the site every Sunday morning.

“I try and pick secrets that surprise me,” Warren said. “Some that are funny, hopeful or shocking, that let people connect a little more to the secrets of strangers.”

There are two types of secrets: those that you keep from yourself and those that you keep from other people, Warren said. When those secrets are shared, it allows people to build relationships with others.

“If we share [our secrets], we allow ourselves to build bridges between ourselves, when before there might have been walls,” Warren said.

Warren created a PostSecret Facebook page about a year ago. He has since registered a MySpace account as well.

“On PostSecret.com I don’t like to show my own voice,” Warren said. “But on MySpace I can share stories.”

PostSecret may have a connection to preventing suicide as well, although Warren said he doesn’t think a direct link exists.

“It helps to share feelings and problems you may be suffering on your own,” Warren said.

Warren travels to universities across the country, he said. He usually attends campus events on Wednesdays and Thursdays, then goes through 700 to 800 secrets on Fridays.

“I really enjoy traveling to college campuses and listening to the stories young people share in front of all their classmates,” Warren said.

Warren’s PostSecret books will be available for purchase before and after the event. He will sign books after the presentation.

Frank Warren at OU

When: 8 p.m. tonight

Where: Molly Shi Boren Ballroom in the Oklahoma Memorial Union

How much: Free