Here's how I look at the question:
If you've ever put on some item of clothing that's meant for the opposite sex - then yes, you've crossdressed.
But -
That doesn't automatically make you a crossdresser.
IF:
You've done it for a purpose (such as a role in a play)
You've done it by mistake (Hey - those are your sister's mittens)
You've done it for bedroom play,
etc.
Then no, I'd venture to say that you might not be a crossdresser, just that you have done it.
There probably are a lot of people who fall into this category.
To BE a crossdresser (IMHO) I feel that you have to have the added ingredient of wanting, desiring, or even needing to dress.
Without the inner drive, it's just an action you're doing, not an identity.
Am I making any sense here?
