I'd strongly suggest that one thing he as an official club ambassador is not supposed to do is wax lyrical about the Mancs. Tip them for the title if you feel you must, but leave it at that instead of sounding like a fanboy.
It's all very easy to point out the obvious things he should *not* do as a purported ambassador for LFC, but it would be useful if you, or anyone at all, had any advice - or indeed evidence - of what he *should* do as an ambassador for LFC