Early morning aerial maneuvers by 2 objects, one blue and one whiteOn the morning of April 10...Friday...at approximately 5:50, I watched an interesting aerial display.The first “light”(more of a glow) I noticed was a blue one, which was traveling north to south, at a fairly high rate of speed. It was about the size of a medium star, and the glow of blue seemed to pulsate, but I can’t be sure due to the distance.As I watch it go across the sky, a white “light”(again, more of a glow) suddenly appeared right behind it. It also was about the size of a medium star.Both were, to my ears, completely silent.The blue one blinked out and re-appeared slightly further east in the sky, and was at a complete stop...no motion that I could detect.The white one seemed to slow down and did a little zigzag in the sky, at what seemed to be the same altitude as the blue one.While the white one did its maneuvers, the blue one blinked out of view a couple more times, and after each would re-appear in a slightly different part of the sky, at a complete stop, but still within the area of the white one and its zigzag movement.After about a minute (60 seconds) of this, they both took off, the blue one slightly ahead of the white one, at what seemed to be the same altitude, in a due south direction.Needless to say, I was quite mesmerized by the performance I witnessed.I have provided contact information on the Report Form.