I tried this last night with no success It's been two months since I lost my ID and I still had some hope of finding it somewhere in my house.
I had a false awakening and was like yeeeeahhh (though it was a bit scary with someone hands holding me), I just waited consciously for the images to form and suddenly I was on a movie theater, I began floating to the screen because I wanted to get into de movie but I remembered I had said I would try finding something, so I stopped one DC and asked if he knew where my ID was.. he looked at me and kept walking, I remembered that in the last LD's this has been happening, my DC's ignoring me until I'm polite. So I said again "hi (smiling) hey, could you please tell me if you know where my ID is?", he stopped, smiled as if pleased and said he didn't knew. I asked other DC's but everybody turned their backs at me! huh! what's going on with them??!, anyway... there was one young lady who answered "the thorn nailed in the couch" (it's the best I can translate this since I don't dream in english), I said "ok, thank you", then one DC (this one I knew because was the image of one of my waking life friends) approached me and asked: "you don't know what that means right??", I answered "no, can you tell me?", he laughed and said "no, we have no compromise", I held his arm and said "hey, you're not this bad in waking life, how would I know where to find it? I don't know what that means..." and everything became blurry and I woke up, damn!

That's the tricky part of the subconscious, usually answering with symbolism. I usually get it through the day, or when I ask for a better explanation in another LD. But since I don't like wasting precious lucid dream time in the same thing, I think it's time to go and get a new ID.