There should be a jib hank (attachment fitting) located about every 18" or so along the luff of the sail, that is the "leading edge" of the sail. There will be a grommet or other eye at the tack corner (lower forward corner) to be shackled (some boats use a snap-hook) to the stem fitting (plate with 2-3 holes positioned near bow on deck. Forestay attaches to forward hole or to tang-strap at forward end and jib tack to one of after holes.) There will be another grommet or eye at the head (top corner of sail) to attach the halyard. There wil lbe a 3rd grommet or eye at the clew (aft corner) of the jib, this is where the jib sheets wil lbe tied to the sail.
If your sail only has the corner grommets/eyes and if the luff has just a boltrope (edge of sail has a round, hard edge that would fit in a groove), then the sail may have been made for a roller-furler, take it to a sailmaker if unsure. You don't HAVE to get a furler, a sailmaker can add hanks to the jib if needed. However, a furler is a nice thing to have, allowing easier handling of the jib.