How to save yourself when you are killed in a trip?

If you can ask others for help, if you can't try to save yourself.

If you are injured, please simply wrap it up with clothes. If internal organs are injured, please stay where you are. If there is a fracture, find a strip hard object to fix and bind it. If it is a poisonous snake bite, first judge whether it is poisonous or not. If it is poisonous, the snake's head is triangular. If toxic, wash the wound with water or saliva. Wrap the proximal end with rope or clothes and lay it for 2 minutes every 20 minutes.

Hang bright clothes and other colored substances around, call for help by mobile phone, or knock on the door with stones. The interval between water and electricity consumption at night is 1, so that rescuers can find it as soon as possible.

If the field is sparsely populated, put a big "SOS" with bright colors for passing planes.