It depends on your girlfriend's personality. If she is usually a quiet person, the gift should not be too ostentatious or she will feel uncomfortable. For example, roses should be omitted. It is best to give her something you made by yourself. You can write her a love letter. In the era of the Internet, paper letters are rare. Because they are rare, they are precious. A love letter written by you will make her excited.
You can also give her some warm things, and then take her to the beach or the park. In short, it is a relatively quiet place. Give her a gift and she will be very happy.
If your girlfriend is more lively and likes to be lively, take her to a lively place, such as an amusement park. Roses are indispensable. You can also customize a necklace for her. It is made of 925 sterling silver and can be customized with your girlfriend's name according to your requirements. It is very individual and deeply loved by girls.
In short, just accompany her to the place she wants to play and do what she likes. I hope you can have a happy day.