They live singly and only come together to mate. As you may have assumed by their eye position and movement, they are visually oriented lizards, and change colors and display behaviors when they encounter other chameleons. Typically, when two chameleons meet up, if they are two males, they will begin to engage in combat, and if they are male and female, mating behaviors may ensue. In general, most reptiles should not be handled frequently or for any length of time. While Solomon Island skinks seem large and docile, be aware that they can swiftly inflict a painful bite if startled.
Bearded dragons are another group of lizards that often tolerate some handling.
Snakes preparing to shed will have skin with a dull appearance, and the eyes will appear bluish. Reptiles don't handle stress well. Family members should be instructed that tapping on the glass, moving the cage often or frequently interacting with a herp is inappropriate behavior. Remember that they are wild animals. Children should never be allowed to handle herps unless supervised by a responsible adult.