When I was young I used to carefully cut along the tape and open my presents. Then I would rewrap exactly as they were and place clear tape over the cut tape so exact that you could not tell it was 2 pieces of tape. I hate surprises.
I don't peek cause I enjoy the surprise. But my youngest son came by the other day while I was gone and left some presents under the tree. They are not wrapped but are in gift bags. He asked me if he could trust me not to peek. I said of course I won't even though I will be tempted.
I love surprises - anticipation is most of the fun!
I don't peek but when I was younger I used to love to look at my presents and pile them up and shake them and try to guess what they were. Now I'm all grown up and my husband likes to get me electronic gadgets. Even after I open them, he usually has to explain to me what they are, so peeking wouldn't do me any good!