To be honest, for the most part of my life I've been unaware of the cruising signals that you might get while in the stall (foot tapping or sliding under the stall etc...). In recent years I've come to understand these signals, but on the rare occasion that I might have noticed such signals, I never acted upon them out of fear that it might be innocent and unwanted
I even read that a signal can be as common as coughing, which is even more riskier imo.
I would really like to be more daring when I recognize an opportunity... what suggestion do you have? did you ever misinterpreted? any negative consequences?