Usually through conversation, or changing the subject. I think the more you talk to them the more you can know about the other sim.
All pets in the sims 3 can have 3 traits and no more.
Check out the Sims 3 website. I think it tells you.
5.
You don't change the traits, once they are set on the game, you can't change them, but you can change some other things.
There Shouldn't Be Any Trait Restriction For Any Profession Or Job In The Sims 3. Traits Just Change The Way Sims Act.
Born Salesman, Dramatic, Eccentric, Eco- Friendly Sims, Perceptive, Savvy Sculptor and there are some secret traits too.
You have to be adult to get married
Adventurous, Photographers Eye, and Disciplined.
Of course you can. (:
graphics, more choices in clothes and hair, you can make your sims more......real (traits and personality)
You cannot be born with traits. You learn traits from influences in your environment that are repeated many times over, causing you to reason with yourself that its okay because others do it.
the way i have done it, is when you get to choose Traits for your "sims" there is the Kelptomaniac trait.