I like to be blindfolded whenever I include tie and tease in my punts. As others have said, not knowing what's coming next really does heighten every sensation for me. There have been times I've had no idea what exactly she's doing to me, like is it oral or a very good HJ, (it still amazes me that it can be difficult to tell the difference between the two, but it is) or what toy she's using on me. I actually wouldn't do a tie and tease without a blindfold, as I think seeing what she's going to do to me before she does it when tied up would be less of a turn on for me and take much of the pleasure out of it.