If your lug nuts are loose, there are a few ways you can tighten them. The first is to use a lug wrench. This is a tool that looks like a cross between a socket wrench and a pair of pliers. It has four sockets of different sizes that fit over the lug nuts. To use it, put the socket that fits snugly over the nut onto the end of the wrench, and then turn the wrench clockwise until the nut is tight.
Another way to tighten loose lug nuts is with an impact gun. This is a power tool that uses air or electricity to spin a socket very quickly. To use it, put the socket onto the end of the gun, and then hold down the trigger while you rest the tip of the gun on the lug nut. The socket will spin around and tighten the nut in just seconds.
If you don't have either of these tools, you can try tightening the nuts by hand. Just grab each one with your fingers and twist it clockwise until it's tight againstthe wheel hub. This might take some time and effort, but it's worth trying if you're in a pinch.