If you're a farting, burping dude, please do not be yourself. Not only for a girl, but for everyone, it would be better if you change into a more liveable man. Otherwise, if a girl doesn't want you the way you are, then it's probably not a good match anyway.
Shut up man, seriously. Stop trying to assert your sexual experience by being a corny douchebag, you knew full well he didn't mean that hole (unless you are apeshit)
You: "lol i can make sexual innuendo which means i've been involved in a LOT of sex"
The rest: go be a virgin somewhere else
Also zapachu, "be yourself" is bullshit
I think peter put this in words the best way
If I lie, I have to remember more things, I'm much too lazy to do this
In it for the sex? That mask will be great, you'll be happy she'll be happy. In it for long term? That mask will just fuck you over in the end, or you'll eventually change into that person that you're pretending to be, without trying.