The phrase can imply different intensities of actions, from trivial to significant.

Varied Impact

Understand the situation to grasp if the actions are positive or negative.

Context Sensitive

Usually implies a deliberate effort to influence or change someone.

Even without physical action, words or behaviors can emotionaly 'do things to' a person.

The effect is often deeply personal and subjective.

Focus on the mental or emotional changes the person experiences.

Usually indicates a pleasant sensation or feeling caused by someone one is attracted to.

It's informal and often used among friends or in casual relationships.

What 'does things' to one person might not affect another the same way.