Hello! !
It is recommended that you do not hit the cartilage. There are many tiny nerves in the ear, so hit as little as possible! The ear is actually a very fragile thing. ^_^
Actually, I think Just put one or two on the earlobe and it will be fine. Wearing earrings also looks good, but too many earrings will look cumbersome.
This is my suggestion! ! Please pay attention to adopt it! !