Mean transverse momentum of \kstar and \phim as a function of the averaged charged particle density (\avdndeta$_{|\eta|\textless0.5}$)in \PbPb and pp collisions at \snn $=$ 5.02 \TeV. Also shown forcomparison are the corresponding values from \PbPb and pp collisionsat \snn $=$ 2.76 \TeV , and Au--Auand pp collisions at \snn $=$ 200\GeV . Thestatistical uncertainties on the data are shown by bars and thesystematic uncertainties by boxes. The shaded box shows theuncorrelated systematic uncertainties.