If you're looking to keep hamburger buns from getting soggy, there are a few things you can do. First, consider using a bun that's slightly denser and not as soft - this will help it hold up better when wet. Second, pre-toast the bun slightly so that it's less likely to absorb moisture. Finally, make sure to drain any excess moisture from the burger before placing it on the bun. By following these tips, you can help ensure that your hamburger buns stay nice and crispy.