Daniel Kaluuya learned everything he needed to know about Ohio by going to Costco.

The “Queen & Slim” star was on Global’s “The Late Show with Stephen Colbert” on Tuesday, and he talked about the real-world research he did for his role.

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“Slim works at Costco so I found the Costco that he was at … I just kinda hung out and I just spoke to the staff and they just showed me a couple hoods and areas that Slim would be from,” he said.

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“I found that if you work at Costco on a Sunday, you earn 38 dollars an hour,” Kaluuya continued. So I was like, ‘Oh, he thinks he’s a catch so he’s going into this date thinking, I’m a great catch.‘ Like, of course, you’re gonna be on Tinder. [He’s a] Sunday Costco guy!”

“The Late Show with Stephen Colbert” airs weeknights at 11:35 p.m. ET/PT on Global.