Speaking as someone who came back after 6 years off:
Start right where you left off - same glider, same site, everything same and familiar. You have enough experience that the touch will immediately come back.
Some will advise returning to the training hill; I disagree. When you get on a bicycle after years without riding one, do you install training wheels? Do you have your daddy run beside you holding you up? Of course not.
A word about weather conditions: For your first flight pick a day that is soarable, but not intense. A soarable day allows more time in the air to re-familiarize yourself with handling the wing, making turns, etc. before having to perform the more challenging aspects of approach and landing. And a mild day will make landing a breeze.