差し入れを渡してもいい？ — Is it okay if I give you a small gift (Sashi-ire)? (Otaku · Advanced, Casual — to friend, JLPT N3)

Gesture & etiquette

Smile brightly and lean forward slightly, perhaps placing a hand on your chest to show appreciation.

Do not use formal language like 'arigato gozaimasu' as it sounds overly distant between friends.