I am an experienced retail operations and HR executive,  body language/ behavioural trainer and certified executive coach with a demonstrated history of working with international business executives on strategic and leadership levels.

Throughout my professional years, I helped businesses in considerable growth and ran several change management projects including performance management, restructuring organisations, process improvements while, at the same time, increasing employees’ engagement and effectiveness in UEA, USA, Hungary, Czechia and Poland.

With over 20 years of conducting leadership trainings and coachings (over 6000 people trained), my main field of expertise is behavioural science. It always was a part of my passion and drive to understand why people do things the way they do and what they communicate when they say nothing.

In this field alone was trained by several world-class professionals like Joe Navarro (ex-FBI agent), Doug Whetstone (Deception Detection Expert) or Patryk Wezowski (Center for Body Language) and spent over 20 years in bringing this knowledge into practice as Retail Operations and HR Director, coach and consultant.

I helped leaders and organisations in reading a room and anti-corruption activities as well as conducted body language workshops, conferences and written short pieces on non-verbal communication for Gentleman and Business Coaching magazines.

Additionally, I have worked with numerous business executives as their coach and mentor in Europe, Middle East and the USA and is a lecturer at some of the best polish universities including SGH, SWPS, Economic University in Wroclaw and Technical University in Łódź.

I can help you with:

  • behavioural analysis and case analysis
  • strategies for getting to the truth in negotiations and every-day situations
  • consulting for audit departments
  • non-verbals during public appearances

I’m certified by the following institutions:

For workshops or mentoring contact jarek[at]konkel[dot]co or connect with me on LinkedIn / Twitter.


Personally, I’m the frontman and the vocal on The Mint music band. Recently, we’ve got our video clip out in the world which – of course – relates to lying in the modern world.


Initiatives I’m involved in

Let’s Behave podcast (co-host) // 2022-present

In school, people told us to behave in class. We think we should act with class yet on our own terms. Our bodies have communicated with one another since the beginning of our existence, and it’s high time we all use this knowledge to navigate conflicts, negotiations or understand others (and ourselves) better. Let’s behave in a way that expresses what we want to convey.

Together with Marcin we tackle lying, social engineering, non-verbal cues through neurobiology, the subconscious mind, linguistics and more. We work as consultants thus many of the stories we tell really happened yet their details were changed.

What my clients say

“Jarek has an incredible talent for seeing nuance. His attention to detail in this area is inspiring. Combining this with the skill to teach through real-life examples, humour and lots of practice, you get a very effective mix. His talent to find the truth, discover deception and see way beyond what others see is unbelievable. He connects psychological knowledge with kinetics, behaviourism, body language and micro-expressions. I very much recommend him as a consultant for special assignments, a skilled negotiator and a teacher who uncovers the secrets of human behaviour. 
Adam Dębowski, entrepreneur, threapist, business psychologist / Leaders of Change Institute