Most Helpful Girl
What a great date! First, I would pack some kind of picnic or drinks or something to show you are thinking about him. Then on the hike, find opportunities to touch him, hold his hand, reach for help on a steep spot or some other casual touch. Also, make sure to look him in the eyes with a smile when you talk with him. Good luck!
I hope it goes well. <3
Most Helpful Guy
Go braless. He won't be able to think about anything else.