One example of condensation is when you wake up in the morning and there is dew on the grass. During the night the water vapor in the air condenced on the cool grass.

Another example is how when you take a cold glass of water and put it in a warm room, the water vapor outside the glass condences on the glass and causes the glass to be wet.

Another example is water in car windows. This can also appear on mailboxes.

You also see condensation on the bathroom mirror when you get out of the shower.