Assalamu alaikum wa rahmatullahi wa barakatu
I would like to know the general ruling for greeting women, both muslims and non-muslims. I have a doubt in how should I greet them. Here in Portugal there's a social habit of greeting people of the opposite sex with two kisses, one in each cheek. It's not intimate in any sorts, it's just a cultural thing.
I would like to know the islamic approach to this.