Giữ bình tĩnh. Khum hai tay quanh miệng để làm ấm bề mặt đóng băng. Rót chất lỏng ấm lên bề mặt đóng băng. Gọi cấp cứu. Kéo lưỡi ra thật nhanh.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
The most important thing you can do is to stay calm.  If you’re alone, this can be hard to do, but give yourself a moment to take a few deep breaths and relax.  Try to avoid panicking when you realize you’re unable to move away from the frozen surface.  If you pull too hard on your tongue, it will literally rip off the frozen surface and cause a lot of damage (and bleeding).  Consider this a last resort option. If you see someone in the general area, try to flag them down by waving your arms or