"Concierges play a big role in the customer service and relations of company. During an interview for this position expect to be asked about how you would handle certain situations dealing with dissatisfied, disgruntled, or angry customers. No educational requirements are necessary, but a background in customer service and communication is highly valued."
What would you do if, on a product release day, 5 people were yelling at you, and trying to get your attention, all at once?
Take it one person at a time. Acknowledge all of the customers and assure them that you'll be right with them.