To influence or change something.

• To have an impact on a person, process, or result.

To touch the feelings of; move emotionally.

• To evoke a particular mood or response.

Of illness or condition, to attack or harm a body part.

• To cause symptoms in.

To pretend to have or feel; feign.

• To adopt artificially a behavior, style, or accent.

Observable expression of emotion; mood.

• A person's immediate emotional state in psychology.