Embarrassing?

So do you think that it would be too much if you are on a flight, at an airport and you see a dress that is just SO cute on someone that you just have to know where she bought it from, so you ask her? Would you do that? Or would you just be a dope (like me) and just keep staring. . . .in my defense, I was debating about asking her because it was a light grayish pewter in color and I wasn't sure if it would work for me. . . although I did recently buy this

but I was kinda gearing up for fall.