Hello forever

A boy in a white t-shirt and bucket hat, carrying a backpack, stands on a sandy riverbank and repeatedly squeezes a small object in his hands before handing it to another boy in a red cap. The second boy, shirtless and wearing red swim trunks, takes the object and they shake hands as a girl in a patterned top and denim shorts walks toward them in the background. The scene takes place outdoors on a sunny day with trees and a body of water visible.