Usually state ties infer that you have gone to school there at some point, established a domicile there in the past, have family or a spouse from there, served in their National Guard, resided in a bordering county, or have some reason why you'd want to practice there when you're finished.
What I've always found puzzling is that the presumed outsiders have a greater burden of proof for demonstrating that they want to practice there at the end of residency.