forget about side lights and flashing brake lights. The basic rule seems to be interior flash, if 2 people 'performing' then that's an invite to come over and anything after that is a bonus providing you don't get pushy. One hint i would suggest is that if people are putting themselves 'out there' then be decent and show your cock as you approach (assuming you are sure of whats happening in the car) as it puts every one on the same page and lets the couple know you are serious and not a boy racer or our (normally) uniformed finest :) oh, at the first sign of a mobile phone outside the car then the couple may well get aggressive which to be honest is more than fair enough. Otherwise it sounds to me like your doing it all correctly :) Just a matter of luck and/or timing. Have fun and stay respectful, you'll get further
