Yuuji: Michiru, my friend. As this is a date, I happen to have a present for you.
Michiru: Whaaaat? R-Really? Why-Why? Huh? Yuuji?
Yuuji: Close your eyes and hold out yor hand.
After a quick scan of the area, I pick up a rock of moderate size, lying in the dirt nearby. I then return and gently place this in Michiru's open hand.