Current business writing style has you putting your signature at the left margin of the page. But when you write a personal note, this is not a requirement. Left to your own choice, where do you place your signature?
If you stick to putting it on the left, it means you are sticking to the past, to tradition and feel safe just staying within the “norm.”
Is your signature in the centre of the page? This means you like to know what is going on around you. Whether or not you like to be the center of attention will show in other ways. The centered signature just means you like to be very aware of what’s what.
A signature over to the right is written by someone who is eager to get into the future. They have left the past behind and are zooming off to see what the world has to offer now and in the days, months, years to come.