It's romantic to give people roses.
Ken has a first date with Kim and hopes to make a good impression on her.
Ken wants to bring Kim a gift.
Ken gives Kim a bouquet of long-stemmed red roses when he first arrives for their date.
Ken gives Kim a ratchet set, something he regularly finds himself using around his house.
Kim is flattered and impressed by Ken's gesture and rewards him with a kiss goodnight at the end of the date.
Kim thinks Ken's gift is peculiar and boring and decides not to go out with him again.