From 2004: 

Dear XXX, you are now a "passed guide".  May I ask, however, that you
note the following for your future tours:

1. It works better if you look into the people's faces when you are
explaining a bit of equipment, rather than looking at the equipment
itself. You tended to spend a lot of time looking up at the telescopes
(e.g., Radcliffe).  Doing this tends to disengage your audience and it is
also often harder to hear the speaker.  So please practice doing this. 
Other than that, which you may not even have been aware you were
doing, your speaking voice works well and you gave good tours. 

2. Use the visual aids in the Allen dome more effectively; tell them about
spectra and hold up the photo of the set of Allen spectra.  Use the
diagram of the workings rather than pointing at the tube.  If I can, I
will try to set up a simple spectroscopic demonstration that can be looked
through and have it permanently in place.  Check the facts about the
spectra (e.g., from hot stars at the top with H and He lines down to cool 
stars like Betelgeuse at the bottom), tell them what spectra are used for,
etc.  Know some numbers like temperatures of the stars, Teff of the sun,
etc.

3. Also in the Radcliffe, make more use of the diagram provided.  Also if
you lead people around the base of the telescope watch out that they do
not trip on the squared off corners, which tend to take people unawares.

4. There was a man there who wanted to take photographs; this is fine as
long as the flash does not interfere.

5. Factual point--the Radcliffe guiding is done by telescope movements,
and the CCD is fixed in place (not moved around).  I think this was just
rustiness on your part.

Looking forward to having a rest now that I have some trained guides, 

Dr. Mike Dworetsky
Director, University of London Observatory
553 Watford Way, Mill Hill,
London NW7 2QS  United Kingdom
+(44) (0)20 8959 0421  [direct line +(44) (0)20 8238 8856]
e-mail: mmd@star.ucl.ac.uk, mmd@ulo.ucl.ac.uk