what to do if someone u know just took some stuff belongs to u and took it on purpose from u nd act like its a present from u ,how can u take it back?

Thank you so much for all of you ,you gave me the couragement to be able to go her place and take my stuff back, i already did it and i faced her and i got it ☺ with a polite way..so no arguement or fighting ,just with respect and appreciation ☺