We always have many ways to find out if user is invisible or offline on yahoo. But finding if the user is offline on Google Talk is tough before this.
Follow the steps and you will end up finding the actual status of the user.

• Open The Chat window of the user, you want to check the status
• Click on option and click on “Go Off the Record”

• Now message user
• If you get something in red that the user is offline and can’t receive messages that means the user is offline

• If you didn’t get any message in red that means user is online in invisible mode..:)

Invisible on Google talk

Now Enjoy the tip and catch your friends who pretend to be offline.