Your name of Jirka has formed an independent, positive, and determined personality. Being somewhat wilful and skeptical, you learn best through your own experiences and seek proof though facts. You do not have great ambitions and your requirements in life are moderate. As you are not overly conversational, at times you consider time wasted when spent in idle chatter. Humour and spontaneity are not natural expressions of this name. Activities combining ingenuity and manual skills are of particular interest enabling you to excel in technical vocations, for example, as a mechanical, electrical, or electronics technician. With training and experience you could be inventive in these fields. You are more interested in being active and accomplishing the tasks you set for yourself. Also, your fondness for heavier foods could affect the intestinal organs causing problems with elimination and, in severe cases, ulcers or growths. You work best alone, making your own decisions, and learning from your own experiences.