Hi GG,
I was tickled to hear you say that "talking with youngsters" is a participial phrase. I had been itching to say that for an hour. (Now I'll probably be scratching all night long!")
I had learned in grammar school that "gerund" was a functional definition. But everyone here seems adamant that once a participle is assigned the function of a noun in a sentence, it may nevermore be called a participle, or thought of as a participle,in any way, shape or form. That pride of origin is allowed only to those lucky participles who are chosen to function as adjectives. In this last case "participle" describes what it was, what it is, and how it functions, as though "participle" were a new part of speech.
I struggle to integrate my new grammar model, but I keep losing ground. I thought to have corrected my concept of "verbals," but CB posted an Oxford page this morning that blew it all away. It's demoralizing.
Best regards, - A.