I began doing my own readings online and eventually with a deck more than 15 years ago. I researched the traditional meanings of cards and the different spread variations, and then I eventually began reading cards for friends and also when I traveled. From Rome to Honolulu, and at many places in between, if I pull out my cards in a home, at a cafe, or in a bar, someone close by will want a reading, and often these people turn out to be very important people to me.
I find that a person's reaction to the cards can be more interesting and powerful than the particular drawn card--although I do see the same cards show up for the same people and questions, so I trust the power and good intentions of my deck which has been around the world experiencing fun and enlightenment with me and many others.