Top up your t:card with travel money to purchase single tickets.
If you usually travel in the same zones, you can add an auto travel for the correct zone and passenger category. The ticket will automatically be deducted from the balance in the card when you use it on board. If you do not want the ticket automatically, you must hand the card to the driver or crew and request the ticket you wish to buy.
Let others use your card
You can lend the card to anyone as long as they meet the requirements for the passenger category you have entered in the auto travel. If you want to lend the card to someone in another passenger category, ask the driver or crew to withdraw the ticket they want.