Build lower body fat through a calorie-controlled diet
Increase muscle mass with progressive strength training
Train arms, forearms, and shoulders consistently
Use higher-rep arm work to increase blood flow and muscle pump
Stay well hydrated
Keep sodium intake consistent
Improve overall cardiovascular fitness
Warm up before workouts to increase circulation
Avoid overtraining, which can reduce muscle fullness
Maintain good genetics-aware expectations, since vein visibility varies naturally
Consult a medical professional before using any supplements or methods that affect circulation or blood pressure