Compliment Or Ask About Clothing
Note that this one can get you into trouble with women if not handled properly ;)
Ask About Surroundings
If you are at their house, then perhaps there is an object that interests you. If you are out and about, you might see something that makes a good conversation piece.
This is one where talking about your own pet might be a very good idea.
Guys with motorbikes often claim that this is a gold mine for getting girls interested in coming for a ride.
Where Were You Born, Go To School
Generally women seem to be more interested in asking this one.
What Did You Do Today