Illustrate a whimsical llama bursting with joy and playfulness, featuring a cheeky expression, perhaps with its tongue playfully sticking out or adorned in a quirky hat. Use vibrant colors and dynamic lines to encapsulate its lively spirit, crafting an irresistibly cute and energetic design. This creation should convey a sense of fun and cheer, perfect for a sticker graphic in vector style with a clear-cut outline on a white background.