Report Getting through the low points in General Border Collie Discussion Posted January 19, 2015 You can mark behaviour with any word or sound that you like - a clap, 'yes', etc. - as long as the sound is consistent and as long as you pair it with reinforcement. The reason a clicker works so well is that it's very distinct consistent, unlike our words and tones. So if you do use a verbal marker, make sure it sounds the same every time (no emotion behind it!). As far as having treats everywhere (definitely not a bad idea) just keep in mind that there are other reinforcers that you could use if you're caught without treats, like you were that morning. If I were in that situation, I would probably mark her attention on me with a 'yes' and then maybe run through the house, play with her, tug on a toy - *something* that she really loves. Obviously feeding her a bit of liver is easier but work with what you have in any given moment!