Get her black mascara, either lengthening or volumizing, better NOT water-resistant.
If she is natural blond - get her brown or/and black.
Simple brands you can get in most stores (like Osco Drug or Target for example) -
L'oreal - the one in a long tube with "white and black" together (you'll easily recognise it when see in the store),
or Maybelline both mascara and lip glosses (especially) are cool - you can get few glosses of different color to make sure they'll match your lady's taste... glosses are better than lipstick because colour is not so distinctive as with lipstick it's hard to guess at distance which color to choose. Check a local dating site like
http://lovestoryblog.com and how some of these gorgeous Latvian and Russian women look , their makeup choices and this my help you decide.