You will receive a message from TTG saying that you have been gifted gold and all of your posts will have a badge that says gold member and you will have new features like:
- Change your username once.
- Highlight your username with a color.(great variety to choose from)
- Have a motto
- Visit the gold member only forums
- Have a profile banner
- Have a signature
Basically all of the new features you get as a gold member.
You will notice you have been gifted gold when you have all of those new features.