I was waiting for this question to come honestly. I made this account just some days ago as i wasn't aware of this community.
Though i am somewhat active on lb.
I am taking screenshots of some of my wallets and will upload them in the main post within 10 mins.
Screenshots won't cut it. You can take another person's wallet screenshot and pass it as your own.
I don't know how to sign it, but i have sent 0.0001 btc to your wallet and here is the txn key : 0699553ec59217fd6e59ce946e9fa133e4d07b59a8ef4669cbd109a165f47ab7
Looks like you are using blockchain.info wallet in the screenshots.
To sign a message with your address, go to your "receive money" page, click "actions" button on the right hand side of your address, and click "sign message".