How do you make a teleport sign on minecraft pe?

To create a teleport sign in minecraft PE, first, place a sign on the ground. Then, tap on the sign to edit it and write "[Teleport]" on the first line, followed by the desired coordinates (X, Y, Z) on the second line. You can also add a custom message on the third line if you wish. Once completed, tapping the sign will teleport you to the specified coordinates.