Dreams about being in social settings like a bar often reflect your feelings about social interactions and peer pressure. The embarrassment you felt when asked about your drink choice may indicate a struggle with expectations from others or a desire to conform to social norms. The old acquaintance's reaction could symbolize a fear of judgment or a reminder of past social experiences.

This dream might suggest that you are in a phase where you are reassessing your choices and values, particularly regarding social behaviors like drinking. It could be an invitation to reflect on what you truly want in your life, independent of what others expect or think.

Consider how you feel about your current social life and whether you are comfortable with your choices. It might be helpful to embrace authenticity and make decisions that align with your true self, even if they don't conform to others' expectations.