For a straightforward first visit, buy the paper ticket at a municipal subway station or city bus/subway information centre before boarding. The bureau also lists onboard sales, but warns that buses may sell out. This guide's validation instructions are for the paper pass; follow the seller's instructions for a digital product.
The official use instructions explain how to insert the pass at subway gates and collect it again. On an ordinary flat-fare city bus, board at the rear and leave at the front. Insert the pass into the reader on your first ride to print the date; on later rides show the printed date to the driver. On numbered-ticket or other operators' buses, check their specific validation instructions.
EX100/EX101 reverse the usual boarding pattern: enter at the front and pay or validate when boarding, then leave at the rear. Follow the driver's directions rather than joining the ordinary rear-door queue. Using an IC card instead of presenting the pass can charge a separate fare.
Have the ticket ready before reaching the reader. Keep large luggage at your accommodation or use our Kyoto Station luggage storage guide before a sightseeing bus journey. The pass pays for eligible transport; it does not reserve a seat or guarantee boarding a crowded departure.