It's not clichéd, it's classic. Sending a couple of small--emphasis on small--pebbles up at their window right at the stroke of midnight, even just to wave at them if they can't come outside, is a meaningful gesture that everyone can make. Bonus point for bringing them their gift because you just can't wait to give it to them, or for holding up a "happy birthday" sign. We take our phones everywhere now: in the classroom, into meetings, into the bathroom, into bed. Don’t take your cellphone into your girlfriend’s birthday. It’s a distraction that will affect your attention and hamper communication.  Undivided attention is the greatest gift of all.  Note: do not mistake “my undivided attention” for a satisfactory birthday gift to give your girlfriend. You may need your phone on hand to coordinate with friends and family meeting up for the birthday plans. Don’t, however, prioritize checking your cell phone over being mentally and emotionally present for your partner. It’s easier than you might think to mistake great gifts for you as great gifts for your girlfriend. Make sure that Super Nintendo you’ve got wrapped in your closet is actually because Super Metroid has immense sentimental value to her, and not because you really wanted to get a Super Nintendo. Although she’s the focus, ensuring those gifts you give are undeniably from you can make them all the more meaningful.  If you’re heading out to dinner, don’t just go for the fanciest place possible. Take her to the new pizza place, because you’ve both talked about studying abroad in Italy. If you’re giving her a book (or any form of art) give her something meaningful to you that you think she will like, but that will make her think of you.  Make her a mixtape or an extra special playlist, and she'll think of you every time she hears those bands. If you’re a musician, pen something particular to your partner and perform it for them! And if you’re not—take lessons on the sly and perform something for them! Even if it’s bad, you will have given your girlfriend...

How would you rephrase that briefly using Indonesian?
Lemparkan kerikil ke jendela kamarnya saat tengah malam. Abaikan ponsel Anda. Berikan hadiah hanya untuknya. Berikan hadiah yang hanya bisa diberikan oleh Anda. Berusaha untuk kreatif.