The "Lone Wolf" would likely just nod his head as a greeting, as he is a solitary type who doesn't say much. He may simply say "hello" or "greetings" as a basic introduction. If he is feeling more sociable, he could also add a short remark like "nice to meet you" or "pleasure to be here." However, it is important to note that his cold and distant demeanor may come across as being aloof or uninterested to others.