You will need a way of adjusting the brake lines for differing wind speeds. If you are flying four line then you can simply add some really strong line by the handles for the brake lines. Say 30 cm knotted every couple of cm. You will be attaching the main brake lines to this piece with a lark's head. For two line flying use the method given in the plans.
Long Lines Tie the bridle lines together.
It can be an advantage to leave them as bunches at first as it makes adjustment of wing pull-in and amount of brake easier. I'm assuming you have equal lengths of all four lines already wound up on your handles. Make sure the winding is in the same direction on both ends of the handles so they will unwind together. Take the wing outside and launch it by the bridle. Take the bridle down to the ground and get someone to help you collapse it.