A brief video clip of the meeting and the words of Pollard are found at the Kipa site that I have linked to
Evidently a source for Pollards behavior can be found in tractate Ketuvot page 112
Here is the Sefaria translation:
Rabbi Abba would kiss the rocks of Akko, which was on the coast of Eretz Yisrael. Rabbi Ḥanina would repair its stumbling blocks, i.e., any potholes in the land, so that travelers would not fall and consequently speak ill of Eretz Yisrael. Rabbi Ammi and Rabbi Asi
would stand and pass from a sunny spot to a shady one, and from a shady spot to a sunny one, so that they would always sit in comfort and never have cause to remark that they were uncomfortable in Eretz Yisrael. Rabbi Ḥiyya bar Gamda would roll in the dust of the land, as it is stated: “For Your servants take pleasure in her stones, and love her dust” (Psalms 102:15.)