Some years relatively few waxwings arrive - usually from some time in October onwards, in other years there are hundreds if not thousands. This year looks like being a good year.
I heard of them being seen from Shetland to Norfolk. As they come in from Scandinavia the east coast is usually a good place, but as Mex has said they are spreading.
I'm in Gairloch on the NW coast of Scotland just now and there are probably over a hundred in the area which have been here for a couple of weeks to my knowledge.
In flight the flocks look very like starlings, except they are lighter underneath, though against the sky that is not always easy to see. It is only when they land that the shape, markings and crest become visible. So if you are in an area which does not normally have many starlings and you see what seem to be starlings, have another look.
Good luck, they are superb birds.
Dave