  We investigate the weak gravitational lensing effect due to the large-scale
structure of the universe on two-point correlations of local maxima ({\em
hotspots}) in the 2D sky map of the cosmic microwave background (CMB)
anisotropy. According to the Gaussian random statistics as most inflationary
scenarios predict, the hotspots are discretely distributed with some {\em
characteristic} angular separations on the last scattering surface owing to
oscillations of the CMB angular power spectrum.
  The weak lensing then causes pairs of hotspots which are separated with the
characteristic scale to be observed with various separations. We found that the
lensing fairly smoothes the oscillatory features of the two-point correlation
function of hotspots. This indicates that the hotspots correlations can be a
new statistical tool for measuring shape and normalization of the power
spectrum of matter fluctuations from the lensing signatures.
