Translate to Russian:

With slow deliberation he would select a few of his more recent studies and sketches, and silently pass them round from table to table, paying especial attention to any new diners who might be present.

Russian:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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После долгих раздумий он выбирал несколько самых свежих набросков и эскизов и молча передавал их по кругу от стола к столу, уделяя особенное внимание любым новым гостям, которые могли появиться.