Look at the setting and the character's state of mind, and then think about what you want the reader to see. Is there a descriptive symbol or two that works naturally within the scene to help foreshadow an event or theme, or create insight into the character's emotional plight?
A fork in the path
Multiple pathways or routes
Rivers: upstream, downstream
Choosing a place to nest/burrow
Obstacles: rocks, fallen trees, etc in route
Looming foul weather
Direction: North, South, East, West
The presence of a rival
Danger in the animal kingdom (fight, or flight?)
Truth or lie
Road trip routes
Post-secondary education or workforce
Marriage or singleness
Children or no children
Right or left
A crumbling relationship/marriage
Real Estate Market
A question mark
Destination boards at the airport/train station/etc.
Robert Frost's "The Road Not Taken"
These are just a few examples of things one might associate with Crossroads/Choices. Some are more powerful than others. A fork in the path is a strong symbol, and likely will not require reinforcement. However, a menu might not foreshadow Crossroads/Choices on its own. Let the story's tone decide if one strong symbol or several smaller ones work the best.