Need help to get the hidden trophy "traced".

[Mojaki_jo]

Hi
Can somone help me to get this trophy? I only need this trophy to get the platinum one.
Thanks
Psn: Mojaki_Jo

 

[Derri]

I don't think you can get help with these trophies because as far as I am aware you can't tail/invade your own friends. Therefore it is pretty random.

 

[Mojaki_jo]

You can tail a friend, or be tailed by your friend.

 

[Derri]

You can tail a friend, or be tailed by your friend.

Can you? I thought you couldn't invade your own friends games. At least at launch and when the game was still 'new' you couldn't. How do you do it then?