Final answer:
An anxious horse may put its ears forward or to the side, have a tense body, and a clamped or stiff tail.
Step-by-step explanation:
In this case, an anxious horse may put its ears forward or to the side; its body is tense and its tail clamped or stiff.
When horses are anxious, they may exhibit various behaviors that indicate their state of mind. The positioning of their ears, body tension, and tail carriage can all provide clues to their emotional state.
For example, a horse with forward or sideways ears, a tense body, and a clamped or stiff tail may be showing signs of anxiety or unease.