if you want long term. don't be "easy" in the first few dates like maybe the first few months. you might give wrong vibes. no much touching either. maybe barely lock hands. Don't wear clothes revealing cleavage. go first to a public place like aquariums.

but since they see you as a foreigner, they might already expect something different or they don't know what to expect. but that's ok.

I know this is not what it should be and women should wear whatever they want and it shouldn't give wrong messages and your date might be different and accepting. but I think this is the general situation here until at least you know them better and if you want to play it safe.