[come] into contact

to physically touch or interact with someone or something

When you come into contact with poison ivy, it can cause a skin rash.
Employees are required to wash their hands after they come into contact with potentially contaminated materials.
Children often come into contact with various germs at school.
It's essential to maintain hygiene, especially after coming into contact with public surfaces.

to engage or communicate with someone or something

The two political leaders came into contact at an international summit.
When you come into contact with different cultures, you can gain a broader perspective on the world.
While working in the customer service department, I frequently come into contact with customers who have diverse needs and inquiries.
As a journalist, I often come into contact with sources from various backgrounds to gather information for my articles.
The diplomat came into contact with representatives from multiple countries to negotiate a peaceful resolution to the conflict.