Originally Posted by tfar

Let's compile a collection of spotting and behavioral analysis techniques used by the TSA. This way we can avoid or prevent being spotted and travel that much easier, i.e. without the inconvenience caused.

It would also help to know what kind of behavior to avoid when standing in line for immigration or at the TSA checkpoint, in order not to trigger a "response".

There might be things we do all the time that we find totally normal but that are conspicuous to them.

Bring it on!