Reading a newer d4 is easy, just look at the number that lands "up" or at the top of the die. However, on older-style d4s–and on some newer gemstone d4s
D4 Dice Tutorial - Know the Dice!
Random Color D4 Die
D4 Dice Tutorial - Know the Dice!
D4 Dice Tutorial - Know the Dice!
Individual d4, d6, d8, d10, d12, and d20
Random Color D4 Die
4 Sided Pyramid Dice (D4)
How to Read a D4 Four-Sided Die - Dice Dragons
How Do You Read a 4-sided die? A d4 Dice Tutorial – Dice Dungeons
4 Sided Pyramid Dice (D4)
Individual d4, d6, d8, d10, d12, and d20