Now, when you meet a blind person, do you shake hands? And how? This is often a comical situation. I meet someone, I put out my hand. They see it. They put out their hand. In the mean time, I don't feel their hand so I withdraw mine. They withdraw theirs. Maybe I hear something that indicates this. A rattle of some jewelry. The hand hitting the leg. So, I put my hand out again. Etc.
So, you can take my outstretched hand, or say that you are giving me your hand. Or we can have fun wiwth this hand shake game. As always, talk naturally but verbalize as much as is necessary so that we understand each other.