There are several ways to perform a landtaking ritual. The most common is the circle your property with fire. This of course is not to be taken literally or else your home might be reduced to ashes. A common way to do this is to light a candle at night and walk around the edge of your property and thus circle the land with fire. Once the area has been circled it is made clean then a declaration is made. You might just simply state "This is my home, may the gods be welcome and bless me and may the wights be welcome here as well."
There are extra factors that one could incorporate into a landtaking ritual as well. It is common to place hazel wood poles at each cardinal point of the property. Some even carve Thurisaz, the rune of Thor, to invoke Thor's protection for their home. Additionally, some make the hallowing sign of the hammer Mjolnir for added protection from Thor. This is of course personal preference.
Another added element is that if you have claimed land before take a little bit of it with you to the new home. A little less common but still practiced. Some take a bit of sod and dirt from their previous home and sprinkle it upon the site of their new home. This of course welcomes any passing wights that happened to have visited your old home.
The follow up to your landtaking ritual is to share a meal with the wights. This welcomes them and makes your connection more personal. Also a shrine or altar could be erected to place offerings to the wights upon. It is important that you let the wights in your area know that you appreciate them and welcome them to your land. Sort of like when you bring your new neighbors some baked goods and say hello.
Other would go far to do a sumbel or blot dedicated to...