Flair? What flair? We don’t need no stinking flair…
To answer your questions, yes we wore foggles or a hood when doing it in the piston and turbo-prop aircraft. In the jets we didn’t – you don’t wear view-limiting devices in turbojet aircraft. As far as the flair goes, there isn’t much of one. These are not real pretty landings; they are emergency procedures, to be used when you have few, if any, options left. You shouldn’t even practice them without a safety pilot or instructor supervising you. However, in my opinion, if you’ve never done any you really ought to go at try one or two – you just never know when you might have to do one for real.
The procedure is relatively easy in a turbojet or turboprop – just stay with the V-Bars on the flight director until you’re at about 35’ radar altitude (varies according to aircraft – the “heavies” would have to a higher altitude and you’d use a lower altitude if you were in a light single) then pull power and level it off. You’ll settle onto the runway without too much ado. In the MU-2s we used Flaps-20. That, by itself, gave us the proper landing attitude. The touch down was firm, but they are usually that way normally. The jets will have a tendency to either pitch up or down slightly when power is reduced. It all depends upon the engine placement. The Astras and Galaxy that I fly tend to pitch up slightly with power reduction (kind of an "auto flair"). It’s a function of the engine placement and thrust line. I’ve never done an actual ILS to touchdown in either the Astra or the Galaxy, but in the simulator it’s pretty straightforward. Other jets with engines mounted under wing have a slight tendency to pitch down with power reductions. How much and to what degree depends upon the individual aircraft.
As far as piston single and twins go. A good starting point is to use as little flap as possible so that you have to fly at a higher angle of attack. Carry power to touchdown and pull it after you’ve “arrived” – kind of like a glassy water landing in a floatplane or a wheel landing in a tail dragger. Like ThirtyEcho mentioned, the G/S will flair slightly as you get near the ground. You can try to use that as a signal to flair, but this is where most guys loose it – they over compensate and balloon. Not something you’d want to do in zero-zero. Hopefully you’ll be able to see something when you get near the ground, but even it you can’t, chances are very good that both you and the airplane will be none the worse for the wear.