The Machine
The Hollywood Machine does glamour. You will get perfect skin, perfect teeth, perfect hair. Without make-up. From Mrs O'Hare you will get perfect speech, initially identical to hers, and her excellent writing and presentation skills. The teeth remain 'fixed', but unless significant effort is taken, like a diet shift for the skin, and careful pampering for the hair, these will fade back to normal, over several days. Your normal speech patterns will return, over a few days, but with a little effort there will be an overall improvement, which training can help with.
Side effects of the machine include it removing any mild visible health problems, at least in the short term. It handles the physical side of alcohol and nicotine (or other drugs) addiction, for all but the worst cases - social or psychological factors may mean people keep on smoking, etc. Prostheses, such as spectacles, hearing aids, and even artificial limbs will be (permanently) adjusted for ideal fit. Clothes and footwear are also adjusted.
The machine is capable of three 'treatments' per day, each half an hour. Mrs O'Hare must be in her seat, and someone who is still in need of her teaching in the other seat. Obviously Mrs O'Hare cannot be treated. Each treatment temporarily decreases Mrs O'Hare's agrophobia, and stage fright.
The effects of the machine can boost people's confidence. The (mild) agrophobia fades over a few days. The main problem is the machine is psychologically addictive (assume this problem effects 50%). If used more often than once per three days the agrophobia gets worse, and if used at least once per day for a week it becomes permanent, at Mrs O'Hare's level. For those with the addiction problem, one treatment per three weeks seems best.
If the machine is used on someone who is already a 'perfect beauty', and the equivalent of fully trained by Mrs O'Hare, it has no effect. There is a flat 5% of people that the machine has no effect on, no matter how poor their initial state - they tend to end up mildly depressed. There's no known way of characterising or detecting this 5% ahead of time. For both 'perfect' and 'reject' it refuses even to start the treatment cycle.
The machine cannot alter your weight, just move it about a bit, and tone your muscles so you carry it better. It cannot make hair or fingernails longer, just trim and polish (temporary hair or nail extensions might be used in the worst cases), though it can colour body hair so it is near invisible. The weight returns to its original position and the muscle tone fades to its previous state unless a regular exercise program is started. The colouring remains for newly-grown body hair unless some quite violent skin treatments are used. The machine has no effect on injuries, (non-visible) diseases or poisons (but, see drug addictions, above).
Note that the machine does not biomod people, and may be ineffective on those biomodded; it depends on the biomod. Also note that it isn't clear what effect the machine has on men...
Weird Stuff & Glamour
Weird stuff occurs around the Hollywood Machine. Only Mrs O'Hare is immune. Then there's the Glamour.
People suddenly fall in love, or there are sudden break-ups - unrequited love is not uncommon. These are not completely out-of-character, more the sort of thing hurried script writing might produce. "Ms Jones, I didn't realise you were beautiful until you took off your glasses" level. This is a low-grade handwavium effect emitted by The Machine, and those with strong wills or used to working with handwavium best resist it (Arthur and Ms Jones didn't fall for each other, for example).
Things occur which are to the benefit of The Machine, so that it continues to be fed and used. And, grow bigger. More suitable handwavium and raw materials will end up close enough to be incorporated. Smart operators will do this voluntarily to avoid 'feeding binges' on the part of The Machine. It will grow 5-15% per year. If not terminally damaged then self-repair can occur in this way. Weak-willed operators can become fascinated with The Machine...
The reason for the psychological addiction is actually more subtle. After using The Machine some people gain enough self-confidence to generate their own glamour, but some don't, and need re-charges. The Machine can't process people who have natural glamour (who rarely have speech problems), or who just can't be glamorous. Even if the addicts don't get recharges their permanent effects (perfect teeth, etc.) remain.
This glamour means people almost always perceive them well, not as awkward, unless they're being awkward for humour. Glamour makes them look good in person, via camera, and on recordings. It is possible to loose or destroy the glamour, but this is really quite hard work.
Note that glamour isn't drama, though some people will be dramatic as part of their (personal) style, and being glamorous may make them think they can get away with it more often. Glamour is related to charisma, though the two aren't identical. Machine-provided glamour almost always boosts self-confidence, and (existential) angst can be quite difficult.
