Final answer:
Uncle Leo seems to be in the action stage of the stages of change model, actively working to maintain his tobacco-free lifestyle.
Step-by-step explanation:
Uncle Leo seems to be in the action stage of the stages of change model. In this stage, individuals have made a behavior change and are actively working to maintain it. Uncle Leo's decision to quit smoking two months ago shows that he has already taken action and is now focused on staying tobacco-free.
Supporting his new behavior pattern is an important factor in helping Uncle Leo stay tobacco-free. He may engage in strategies such as seeking support from friends and family, using nicotine replacement therapy, or finding alternative activities to replace smoking.
It is also worth noting that educational programs about the negative effects of smoking may not be highly effective at persuading smokers to quit. Most smokers are already aware of the health risks associated with smoking. Instead, personalized support and individualized strategies can be more effective in fostering behavior change.