Frequent: Sitting, standing, walking, climbing stairs and/or ramps, balancing, stooping, kneeling, crouching, crawling, pulling, pushing, reaching, repetitive hand motions, hearing, speaking clearly, visual acuity, distinguishing colors, driving, traveling. Occasional exposure to: biological hazards (communicable disease, bacteria, insects, mold, fungi, etc.), work outside, work around moving objects or vehicles, work on uneven surfaces, work alone, work prolonged or irregular hours.