I trust my intuition with all entirety. It has literally allowed me leave situations early enough before major damage and saved my life.
Your intuition will guide you, warn you about which people to stay away from or distance yourself from. Trust it, it is there to protect you. It will allow you to see what situations for what they are, people intentions for what they really are.
I build on my intuition from past experiences.
Recall your past experiences, this my biggest protection.
Feelings, I feel a lot and have strong intuition on people , places and things. I have learn to trust it, even if I do not understand it.
I tend to have dreams, clues I have been attuned too.
I consult with trusted confidants and pray.
Here is a great article on how to build on your instincts.