When going researching is it better to let them know that you know they’re there?

[Thumper]

Are you more likely to encounter yowies if you go into the bush as an oblivious bumbling human or as a yowie aware researcher?

For example, I’ve done wood knocks when entering and leaving an area when I’ve heard wood knocks on approach. It’s a “protocol”.
Now my question is, does this make them more or less anxious? Is that better or worse for research outcomes?

I suppose the answer to these questions is “depends on the objective”.

What are your thoughts?