My fiance is always worried about closing the blinds so nobody sees us. As for me I could care less. If someone is looking into my window and sees whats going on then they shouldn't be looking! Lol Everyone has sex so I'm not too embarassed about "getting caught".
I'm one of those types of people that doesn't care if the blinds are open even if someone can see us. It's my house, I pay the rent for it, and if someone does not want to see me naked, having sex, etc, they need to not be looking into my house in the first place.
We forgot to close the blinds once and ended up with our white-haired granny neighbor watching us through the blinds. Heck of a surprise, let me tell you.