Here is how to play any champion:
Walk around with right click. Press Q, W, E, and R to use your skills. Basic attack is right click. To click an area to cast an ability, left click. To buy items, left click, and then left click buy or double-click the item.
Good luck out there and remember, when you are outlaned call the other champion overpowered and everyone will respect you because the people that play League of Legends bathe in hatred and excuses.