Final answer:
Antonio and Felix's different behaviors regarding eye contact can be influenced by individual comfort levels, cultural norms, and personal habits.
Step-by-step explanation:
In social settings, people tend to have varying levels of comfort when it comes to making eye contact. It is possible that when Antonio glances at Felix, Felix may not look back because he may feel uncomfortable making eye contact or because he is focused on something else and does not notice Antonio's glance.
Eye contact can also be influenced by cultural norms and personal habits. In some cultures, prolonged eye contact is considered impolite or confrontational, while in others it is seen as a sign of respect or attentiveness.
It is important to remember that each person's behavior and response to eye contact can be influenced by a variety of factors, including individual personality, social context, and personal experiences.