Fun stuff...
I cannot stress enough that everyone should drink water- dehydration makes Hypothermia onset that much faster...
As mentioned by others, wear layers, be sensible about how you are feeling and drink water. If someone ain't acting/feeling right, say something. Better safe than sorry.
Father Duncan MacKenzie
Templar-High Priest of Brazen
Chaplain, Bloodspirits Mercenary Company
Janos Beecham (alt)
Dragoon of No Importance
John Tinney
Safety Marshal/ EMT