I'm looking for an app that would help me find my girlfriend (or hide from her) at the mall. Christmas is coming and we'll be spending a lot of time at the stores. I plan on buying something special and I to know where she is when I go buy the bling. Any ideas? I'm thinking something that tells me how far she is and points to her direction. I think i saw an app similar months and months ago that said it was great for finding friends in a concert, but my searches are coming up empty. Thanks.