Notice their area code and make a comment, google the area code if you need to. “Hey, I see your area code is Dallas, is that where you are from or is that where you live?” Awesome, I have friends that live there, or, I’ve always wanted to visit, or, I was just there for a team event not too long ago” Say something that sounds natural to loosen it up a bit.
As a last resort, you could try cold calling by phone. This is probably the most depressing and soul destroying activity on the planet. Even if you get past the usual questions such as ‘If you’re selling something – I’m not interested’ and ‘How did you get my number?’ you need a really slick and professional script and the ability to recognize and avoid lonely old ladies who just want to interact with someone, anyone, in fact.