Did you know that the ‘Matilda’ part of Waltzing Matilda refers to the swag the tramp carried ie it was a romantic word for his bed-roll – if he was doing this riddle he would be singing ‘being with my Matilda helps.’

Waltzing means to ‘hit the road’. Very few Australians know this, even though they love the song and sing it at the drop of a hat, so I’m not surprised if you don’t. I’m a bit surprised that the OQD made a typo on the B though – there never was a William in the picture, as far as I can tell.
Anyways, back to the riddle. To recap - NOTHING we have said so far has been correct. Nil, nix, nada, null, naught.
So here’s a different tack –
Friendly / unfriendly = a judge,
referee, umpire, assessor (or has the ass been given the boot?)
‘said to be this’ = both sides - anagram (udosuk

)
‘staring you in the face’ = mirror image
'sounds familiar' = echo (haven't we said that before)
So how’s about reflection?