There are many people in the square, packed like sardines.
There are many people in the square, just like water flowing together.
The crowd in the square is like the stars in the starry sky.
There are many people in the square, like ants before the rain.
Extended data
Change "many people in the square" to the matters needing attention in figurative sentences;
1, highlighting the characteristics of things
The use of figurative rhetoric in sentence making can highlight the characteristics of things and portray things vividly.
2. Understand the principle of metaphor
Understand the characteristics of metaphor, don't write casually, and follow the metaphor principle of what is better than what.
3. vivid
Make sentences more vivid, vivid and concrete.