  Measurements of charged-particle production in pp and p-Pb collisions at
$\sqrt{s}_{\rm NN}=5.02$ TeV in the toward, away and transverse regions are
discussed. These three regions are defined event by event relative to the track
with the largest transverse momentum ($p_{\rm T}^{\rm trig}$). The transverse
region is sensitive to the underlying event (UE), but it also includes
contributions from initial- and final-state radiation (ISR-FSR). Therefore, it
is further subdivided in two regions, defined according to their relative
multiplicity: trans-max (the sub-transverse region with the largest
multiplicity) and trans-min (the sub-transverse region with the smallest
multiplicity) regions which are sensitive to UE and ISR-FSR, respectively.
KNO-like scaling properties are explored in the three defined transverse
regions. Finally, the relationship between $p_{\rm T}^{\rm trig}$ and the
energy detected in a region close to beam rapidity (very forward energy) is
reported.
