Can I import Sims from one game into another?
How do I get my Sims to change households?
Can Sims fall in love with someone of the same gender or is that a mod?
Is there a way to edit a Sim's appearance after I've created them?
How do I move?
Can I import Sims from one game into another?From one save to the next? Yes. The FamilyBin in the Sims 2 only ever saved one copy of the family, and once they were placed - that was it. In the Sims 3 you can place as many copies of the same family in one neighborhood using the FamilyBin - or in any other neighborhood you like. It's the same FamilyBin in all saves.
How do I get my Sims to change households?The "..." Button, go into Edit Town, and there should be a little button on the left hand side that looks like a house with an arrow. Click on it and it will ask if you are sure that you want to change households, as you can't keep wishes and blah blah blah. You click the checkmark and you can then change households.
Can Sims fall in love with someone of the same gender or is that a mod?No mod needed. All you have to do is romance the Sim of the same gender.
Is there a way to edit a Sim's appearance after I've created them?When in game, in the household of the Sim you want to edit, press three buttons on your keboard "Ctrl + Shift + C" at the same time. This will prompt a blue box at the top of your screen. This is the cheat console. In that console, type in "testingcheatsenabled true" exactly like that (without the quotation marks around it) and hit enter. Now press shift and click on your sim and you'll see a "Edit in Create-a-Sim option.
How do I move?Phone, computer, newspaper. Usually it's under "Real Estate > Move Within this Neighborhood/Move to a new Neighborhood"
If you're not patched all the way, there should just be an option to just "move."
A lot of these answers were used under the most recent patch, so if your game is not patched all the way things may look differently. Hopefully this helps!