Interesting thanks, but in all my OPC's LPC etc i have never been taught to lower the nose, I am more interested in my speed
Well, if you look at your nose, it indicates where your speed will be in the near future... Additionally, at the time you lose an engine (or loose thrust) your flight path angle immediately gets shallower. If you keep the nose at the same pitch, your AoA will increase meaning your speed will decrease. If you lose an engine, you have to lower your nose to maintain AoA. Naturally an aircraft will do that by itself, but if you want to be a little proactive to prevent a drop in speed, you better use the elevator to expedite the natural reaction.
I guess it all varies what type your flying...
Depending on the effect thrust has on the pitching moment, aircraft will drop the nose immediately if you lose thrust (even more than necessary), so yes it all varies with type what
you have to do, however the nose has to get lower, whether you do that or it happens naturally is not that important.