Shouting slogans and pulling banners depends on what you do.

If it is your personal behavior, you can be held accountable for disturbing public order.

If other people are organized to March together, they need to report to the relevant departments. Those who assemble without permission can be held accountable for illegal assembly according to law.

Personally, since it is a legitimate right to safeguard rights, we should not try to explain the situation to the relevant departments in a peaceful way, ask the government for support, or shout slogans and pull slogans through legal channels. This is a demonstration in itself.