Love / What to do for my PL girlfriend on her name day? [6]

Hello can some one help me please my girlfriend is polish and it is her name day on 26 july as i do not understand what you are suppose to do on a name day can someone help me please .. Do i have to buy her a present or what do i have to do celebrate this day with her ..I love her very much and i want to show her that i respect her beliefs and i want to make her happy.. So what should i do . Can someone please help as i am not polish and i have no understanding of this day .. Also is there any other days that i need to be aware of ..

Thanks
Ash.
P.S. hope someone can help me and i only understand English.. sorry .. I am trying to learn polish ..