Where Is the Private Message Button?

Hello again Null-Byte and other fellow Apprentices and Teachers,

I know this is a very awkward question but even after observing very carefully at the page of a friend-to-be of mine, I couldn't find the message button to send him/her a Private Message.A screen shot with encircled location of the button would be helpful.

As always help would be appreciated as question are not bound to be intellectual or stupid, A question is and would always be a question lest answered... Cheers~

The_Unknown.