Please quote and verify for me thanks in advance.

A repost of my bitcoin address: Trusted members please quote it, thanks!

how code for signature for my addres/how to get?
https://tools.bitcoin.com/verify-message

I was confused to find where I could get a signature code, I've tried it several times and in the message field and in the signature column is always red, so I could not access

You first have to know which wallet has an option for you to sign a message. Sulendra already gae you a list and the instruction onhow to sign using those available client. If your current wallet is not on the list then you will have to create a new wallet or maybe export the privatekey and import it in one of those clients that allows you to sign.

Nice vanitygen. Quoted.

Quoted but it is better if you sign a message with your address too.