Gibbons maintained a wide circle of friends, who in her later years included Adams, the entertainer Barry Humphries and the novelist John Braine. From the mid-1970s she established a pattern of monthly literary tea parties in Oakshott Avenue at which, according to Neville, "she was known to expel guests if they were shrill, dramatic, or wrote tragic novels." As her own productivity dwindled and finally ceased altogether, she kept a commonplace book in which she was recording her thoughts and opinions on literature as late as 1988.