While I, Daniel, was watching the vision and trying to understand it, there stood before me one having the appearance of a man.
KJV
And it came to pass, when I, [even] I Daniel, had seen the vision, and sought for the meaning, then, behold, there stood before me as the appearance of a man.
ASV
And it came to pass, when I, even I Daniel, had seen the vision, that I sought to understand it; and, behold, there stood before me as the appearance of a man.