By simply violating personal space is NOT assault...without threat of battery, there can be no assault.
tort.laws.com/intentional-interference
Assault in the United States is a broadly defined charge of violent crime which constitutes an attempt to commit battery
Assault charges may be as minor as the classification of Simple assault, which does not result in any bodily injury upon the plaintiff. Simple assault is the violation of one's personal space without consent that does not result in physical harm. Importantly, simple assault charges, unlike menacing charges, must result in physical contact.
The 2013 Florida Statutes
Title XLVI
CRIMES
Chapter 784
ASSAULT; BATTERY; CULPABLE NEGLIGENCE
View Entire Chapter
784.011 Assault.—
(1)
An “assault” is an intentional, unlawful threat by word or act to do violence to the person of another, coupled with an apparent ability to do so, and doing some act which creates a well-founded fear in such other person that such violence is imminent.
(2) Whoever commits an assault shall be guilty of a misdemeanor of the second degree, punishable as provided in s.
775.082 or s.
775.083.
History.—s. 5, Feb. 10, 1832; RS 2400; GS 3226; RGS 5059; CGL 7161; s. 1, ch. 70-88; s. 729, ch 71-136; s. 17, ch. 74-383; s. 7, ch. 75-298; s. 171, ch. 91-224.
Note.—Former s. 784.02.
The important phrase is well-founded fear. Not just fear, but well founded. If I'm walking by myself, and I fear the person invading my personal space due to his/her actions/words towards me, a jury might agree that my fears are well-founded - even if no physical contact has actually occurred.
If someone approaches and asks, "Excuse me, but do you know how to get to ___ ? Do you have the time? etc" not well founded.
If someone approaches and asks "Hey, got any spare change? " while continuing to get closer? Grey area - would just be on high alert.
If someone approaches and asks "Yo b****! What the ....... you doing here?" and continues to approach aggressively - well founded.
There is no way to definitely know which of the above scenarios would lead to an actual crime - some criminals can be very polite; some people just act tough but are not going to really hurt anyone. It's a "more likely than not" judgement, which has to be made in a split second, and if you make the wrong decision it can ruin your life - or end it.
But as the saying goes, "I'd rather be judged by 12 than carried by 6."