If you're going to do this trick, you need to take steps to ensure that you won't set the house on fire and burn yourself. Go outside to do this trick, and find a clear area, without any brush around or anything else that's a fire risk. You need to have a bucket of water handy, in case you need to extinguish flames quickly, and you need to have adult supervision. If you use gloves, use an old leather glove or lined garden glove that's tight-fitting with a hard palm surface. While wearing bulky flame-retardant gloves is an excellent safety precaution to protect yourself from being burned, cloth gloves in general mostly keep the trick from working at all, and can actually make the trick more dangerous. Bulky flame-resistant gloves will often extinguish the flame before it lights, while a regular glove can absorb the lighter fluid, increasing the possibility that you may light the glove on fire and burn yourself. Make a fist, but leave enough space to insert the end of the lighter into it comfortably. Your fingers need to be relatively tight, so the butane won't escape when you release it into your palm. Use your thumb to cover up the gap on the top of your fist, where you index finger meets your palm. Try to imagine you were holding water in your palm and keeping as much of it as possible from escaping. The trick basically involves filling your fist with butane, then lighting it as you open your hand. Put the flame-end of the lighter into your hand, far enough to push the butane into the pocket your fist creates. It won't work if you're holding the lighter just at the edge of your palm, you need to really get it in there. To start the trick, hold down the red button on the lighter, releasing the gas. Do not strike the flint by rolling the thumb-roller, but instead just depress the red button.  Different performers of this trick will hold down the button for longer, or shorter, depending on the gas flow of the lighter, and the size of fireball you want to make. To be on the safe side, it's better to hold it down...

TL;DR in Indonesian:
Lakukan tindakan pencegahan keselamatan. Coba kepalkan salah satu tangan Anda, tapi sisakan jarak antar ujung jari dan permukaan telapak tangan. Masukkan ujung pemantik ke dalam kepalan tangan Anda. Tekan dan tahan tombol pada pemantik selama 5 detik. Keluarkan pemantik dari dalam kepalan dan tempatkan dalam jarak yang agak jauh. Dekatkan pemantik yang menyala ke ujung kepalan yang terbuka, yaitu pada jari kelingking dan setelah itu buka kepalannya.