The Difference between Angels, Ghosts and Spirits

The veil between the physical and the spiritual world is beginning to thin, as it does every year at this time.  You may notice more spirit activity such as a flash of light, seeing something out of the corner of your eye, or feeling as if there is someone with you.  

Your angels, ghosts and guides all are different types of spirit and will feel, sound or look different.  How can you be sure  which is communicating with you?