Meaning of "implying" in the following sentence

The capacity to cause or change certain types of human behavior by implying or using physical or psychological means to induce compliance.

I consulted various dictionaries but the definitions given do not clarify the meaning.

1. to suggest that something is true, without saying this directly
2. if a fact, event etc implies something, it shows that it is likely to be true
3. if one thing implies another, it proves that the second thing exists

So my question is, how do you imply a means to do something.