Final answer:
Heat and exercise can help dilate veins and make them easier to find.
Step-by-step explanation:
Two things that can help dilate veins and make them easier to find are heat and exercise. When blood vessels in the skin dilate (vasodilation) due to heat or exercise, more blood flows close to the surface of the body, making the veins more visible. For example, in the case of varicose veins, elevating the feet and legs whenever possible can also help alleviate this condition and make the veins more prominent.