What did Plutarch do during his visits to Rome?

During his visits to Rome, which were prompted by his public duties, Plutarch primarily lectured on philosophy.12

Beyond his lecturing, he used his time in Rome and Italy to cultivate many friendships, including with the Roman consul Lucius Mestrius Florus, from whom he adopted his Roman family name, Mestrius. He may have also enjoyed the acquaintance of the emperors Trajan and Hadrian.2

While he was in Rome, his political responsibilities and his commitment to teaching philosophy were so demanding that they limited his ability to study the Latin language, which he had learned late in life. Despite these engagements, he maintained his identity as a citizen of Chaeronea, where he continued to hold municipal posts and direct his school.312