In this group, you can add all the girls who have big feet and she write it on facebook (group, page), on a blog or other For exemple, you can use google to search in facebook or other site:
site:facebook.com "i have big feet for a girl" site:facebook.com "my feet are size 12" site:facebook.com "problem to find shoe size" "size 12" site:facebook.com problem shoe "size 12"