Loitering, in law, the act of remaining in a particular public place for a protracted time
Loitering at a bus stop or rail station longer than is necessary to catch the bus or train, or spending time there at all if not using the service.
As Nikolaev's troubles grew, he became steadily more obsessed with the idea of "striking a blow." On October 15, 1934, he was arrested by the NKVD, allegedly for loitering around the Smolny Institute, where Sergei Kirov, the popular administrator of the Leningrad district, had his offices.