1) Look at what jewelry anda look best in. Do anda look best in gold? Then anda need to get a red lipstick with an orange undertone. Look better in silver? Then a red lipstick with a BLUE undertone.
2) Look at your wrist. Are your veins blue atau an zaitun colour? (ya know, kinda green)
Blue = blue undertone red lipstick
zaitun = orange undertone lipstick.

Note: If anda look best in both emas and silver jewelry, then anda can pull off either lipstick c: same with your wrist. If anda can’t even see them very well, anda can also pull off both c: