Final answer:
A comfortable duration for holding eye contact is usually between 2 to 5 seconds, which allows for positive and non-threatening social interactions.
Step-by-step explanation:
A typical period of time that is comfortable for holding eye contact is approximately 2 to 5 seconds. Holding eye contact for a shorter or longer duration may not be as comfortable and can sometimes be perceived as either shy or aggressive, respectively. A typical period of time that is comfortable for holding eye contact can vary depending on cultural and personal factors. In Western cultures, an average comfortable duration for holding eye contact is around 3 to 5 seconds. Thus, in casual social interactions or when communicating with others, a safe range to hold eye contact without making the other person feel uneasy is within this time frame.