  This paper delves into observable signatures of hot spots orbiting
Reissner-Nordstr\"om (RN) black holes and naked singularities. In a RN black
hole case, we find two discernible lensing image tracks in time integrated
images capturing a complete orbit of hot spots, and a image shadow within the
critical curve where photons with a small impact parameter fall into the event
horizon. Conversely, in RN singularities, additional image tracks can be found
inner the critical curve, originating from photons reflected by the infinitely
high effective potential well. Moreover, we found incomplete and converge
tracks from the time integrated images of hot spot orbiting RN singularities
lacking of a photon sphere. The presence of these additional image tracks
exerts a significant influence on temporal magnitudes at their local maxima,
allowing us to differentiate between RN black holes and RN naked singularities.
