Do you play mind-games?

I recently started to wonder that I rarely use press in the media. Sure - I'm attending to every press conference myself and therefore earned to be called 'media-friendly manager' by press, but I rarely go to media myself. As I prefer not to sign much new players I don't really have to unsettle my targets or anything like that. Praising players for good performances usually happens on post-match press conferences. So what's left for it is pre-match and post-match mind-games with AI managers. I've been avoiding them because I'm not really sure what to say and general rule in that cases is - don't say anything, you might make it worse.

In FM10 my assman suggested if I should make a comment about opposition player or not. I followed his advice, but I never really understand if my comments had any actual effect in the game. Also, in FM11 I haven't received any such advice from backroom staff.

Has anybody developed some good handbook on mind-games? What to say and when? (e.g. what to say about stronger and weaker opponents). Is the effect of my words somehow connected to my squad personality?

And what should I say about opposition players so that it would affect their game negatively? (also connected to personality?).

Back in FM10, mind games were relatively effective. Now it's pretty useless considering the number of players being affected too few, so I stopped using it.