2001 Suzuki Maroti white smoke and water from exhaust tail

2001 Suzuki Maroti Four Wheel Drive Manual 97000 miles

hi,

when i start my car after some time like after 5-6 hours.
white smoke comes from exhaust tail , also little water droplets in morning.

and this disappears when i drove 1-2 km.

what is the problem ? mechanic told me not to worry about this