How do you handle being on your feet behind a counter for most of your shift?

Customer Services Clerks stand behind a counter for most of their shift — sometimes with a stool or chair available for very brief moments between customers, but standing is the working position. The role is physical in this respect even though it's not heavy lifting. The exam is screening for: (1) HONEST capability to stand for extended periods — this is a job requirement; (2) ENERGY MANAGEMENT — sustained energy throughout shift, not just early; (3) BREAK USE — scheduled breaks used appropriately for rest; (4) PHYSICAL PREPARATION — good posture and comfortable footwear matter for sustaining standing work. Candidates who cannot stand for long periods or who would require frequent unauthorized breaks aren't fit for the role. The exam wants direct acceptance of the physical demand, much like the mail processing exams want direct acceptance of repetitive work and shift hours. Honest acknowledgment of how to sustain the physical demand is better than naive 'I'll be fine' claims.