Color: Is it red, white, yellow, pink, blue? Is it bright? Is it dull?
Texture: Is it soft, hard, rough, or smooth?
Shape: Is it round, triangular, square, or heart-shaped? Is it fat or thin?
Sound: What does it sound like? Loud, soft, or shrill?
Smell: What does it smell like? Sweet and fresh or stale and bad? Clean?
Taste: Does it taste sweet, sour, or bitter?
You can also use adjectives say how you feel about the thing. Do you think it's good, bad, pretty, beautiful, ugly, clever or stupid?