Each approved word in the dictionary has a specified approved meaning which can be more restricted than its meaning in standard English. Always use these words with their approved meanings.

Example:

The approved meaning of the word “follow” is “come after” and not “obey”.

Non-STE: Follow the safety instructions.

STE: Obey the safety instructions.

But you can write:

STE: Follow the green lights to the nearest staircase.
STE: Do the instructions that follow: