Your research, and that means reading actual books, and
looking at photos from the time period. If you do your research, and
still get it wrong, at least you tried, and no one will have a go, and
will offer advice if you ask for it.
Find your own particular area of interest, as this will
direct your research more clearly. This could be the Auxiliaries, the
Home Guard, the Wardens, the WAAF, the Land Army, the WI, housewives,
Bomb Disposal, the WVS, the French Resistance, a particular regiment,
Get the details right. No point in having a fantastic
dress, brooch, cardigan, hat, gloves if you have an obviouly modern
handbag, it just jars. If in doubt, leave it out.
Think of your reenactment outfit as CLOTHES - you're
not wearing a costume, you are wearing clothes, like peole would have
done back in day. The lady of the house wears a lot of her stuff everyday
for work, but it's the details (hat, shoes, broch, gloves, gasmask,
handbag, shoes, make up etc etc) that make the ensemble 1940's.
ENJOY reenacting! We do it because we like it and it's
fun, and different to our everyday working life. We aspire to be historically
perfect of course, but we are all at different stages, and there will
always be more that we can do to make our reenactment better. The next
step for example is getting some period style specs for the Boss - She
feels a bit awkward still wearing modern specs, but she needs to see
where she's going! And doesn't get on with contact lenses very well.
The people you meet at 1940's events are so welcoming, a good sociable
bunch of folks. For me it's the people that make this such a great hobby.