Let's explain how heating up your hands by a fire is not an example of conduction.
Conduction can be said to be the transfer of heat which involves the movement of particles which are in contact with each other.
In conduction there is no transfer material.
So, when we heat up our hands with fire, the air acts as a thermal insulator. Since the air acts as a thermal insulator, this means there is now a transfer material.
As the fire burns, it heats the air which in turn expands and rises outwards causing your hand to feel the warm air.
The type of heat transfer that occurs when you heat you hands by a fire is convection. The heat flows from a higher temperature to a lower temperature.
ANSWER:
Therefore, heating up your hands by a fire is not an example of conduction because the air already acts as a thermal insulator