I tend to get comfortable with the dialogue and find out who the person is in the script and try to hit that. People are sort of independent of their occupations and their pastimes. You don't play a politician or a fireman or a cowboy - you just play a person.
The aging process has you firmly in its grasp if you never get the urge to throw a snowball.
I started out Ice skating with Holiday On Ice and just got offered the part of R2 by chance.