Answer:
bystander
Step-by-step explanation:
Bystander -
It refers to the person , who is present in any important function or meeting , but is least interested regarding the meeting , is referred to as a bystander.
These type of people are more interested in their own person life and problem rather than the function or meeting , and hence does not show any interest or participation .
Hence , from the given scenario of the question,
The correct term is bystander .