As a first step, I will ask them directly if they need this seat. If they need it, I will try to find other seats and give up mine. If they don't need it, I will remind them that this is a public place and seats should be enjoyed and not occupied.
Step two, if the inquiry is fruitless, I will ask people around me for help. After all, in public, everyone has the right to enjoy public resources, and everyone's rights and interests should be respected and protected. If people around us also think that the seat occupier should not do this, we can put pressure on them to give up their seats together.
Step three, if I still can't solve the problem, I will seek the help of the venue management. On-site management personnel should have the ability and power to maintain public order. You can patrol or inform the occupant to give up his seat, so as to maintain order in public places.
To sum up, the behavior of occupying a seat has both rationality and irrationality. We should take appropriate measures to protect our rights and interests and the order of public places in the face of unreasonable seat occupation. For the behavior of occupying a seat, we should also reflect on whether our behavior is reasonable, whether it is necessary to occupy a seat, respect the rights and interests of others, and maintain good order in public places.