I usually read for others, not myself. In the unlikely event that I'm reading for myself, I make sure my hands are clean (not moisturised), and shuffle for moment to re-establish the link between myself and hte deck. Then I shuffle for a moment to randomise the cards, and go.
If I'm reading for others, well currently I read in a cafe, and only two afternoons a week. So I turn up just as the Lunch Rush is easing off, say hello to the boss and any staff members who are on the floor, cover the table I always use in a deep-blue cloth, cover the deep-blue cloth with a translucent (organdie?) white cloth with pretty little silver stars on it, pull out my hourglass, pull out and unwrap my Tarot decks, lining them up to be easily seen from the querent's chair and making sure they are all showing hte same Major Arcana card for comparisons of art-styles, Go outside and stick up my signage, sit down, and pull out a book and start reading it.
I get clients if the book I've brought along for between-times is really engrossing and I want to continue reading it without interruptions. THAT's when I'll have a busy shift!
When a client wanders over, I'll invite them to sit, ask them which deck appeals to their taste most, put the others aside, personally hand them the one they've indicated and let them shuffle. As they're shuffling (with an eye to deciding on a spread) I'll ask if they have a particular issue in mind, or if htey just want a general reading to see what's around. When they finish shuffling, I ask them to cut the deck into four piles, then to put those piles back together in a different order, (four because if you make it three or five they invariably put the centre one on top, and with four it's more random), then I'll lay out the spread face-up plus three extra cards to the side face-down, and start talking.
It's really about getting them to connect with the deck, hence all the handling and also letting them choose from whichever few decks I've chosen to bring along that day.
