Dark brown hair but what peak a boo highlights should i add??

i.e. im light brown!Dark brown hair but what peak a boo highlights should i add??
blondeDark brown hair but what peak a boo highlights should i add??
sure...but a pic would help. there are alot of people who are light but dont look good in certain colors and there are darker tones that look better in lighter shades





so a pic would be better then just ';light brown';