Sometimes, the crossroads is clear. You look one way, then the other, and have an immediate sense of which path to follow.
At other times, you only know you are at a crossroads because you feel stuck, not sure which way to go, how to proceed. If you already have practices such as meditation, listening to your dreams, making art, then you become extra vigilant about discerning signs. They are cumulative, and will help you evolve your sense of direction.
If you are practicing none of these things, then perhaps it is time to start. That in itself will move you forward.