We've been making a kissy noise to try to get Fitz's attention if he's doing something we'd rather he didn't do. Today I decided to make it a more formalised positive interruptor so followed the kiko pup video to the letter - after a few goes he realised that he needed to make eye contact in order to get his treat, however he's not yet generalised the behaviour so outside a training session it might work or might not - depends on what else has grabbed his attention
So how long does it take for it to take effect?