How to know if someone invisible on gtalk

It's quite simple to know who is invisible on gmail or gtalk. We can easily find invisible due to bug in g talk design.
What to do if you want to know if someone in really offline or is playing Mr. Hideous or as we call here in India – "Mr. India" ?
Follow these simple steps:

Step 1: Open Chat Window
            eg: if u want to confirm xyz@gmail.com is invisible the open chat window of him

Step 2: Go off Record


          Now Click on the go offrecord

Step 3: Send Message
            Now you can type any message if it gave u red message that means he is really offline   
           otherwise he is invisible.

there is no red message that means he is invisible

This shows he is offline not invisible

Posted in: BUG IN GMAIL , CHECK INVISIBLITY ON GMAIL , CHECK WHO IS OFFLINE OR INVISIBLE ON GMAIL