Question

any one standing near a born fire feels a draught​

Answer 1

The bonfire heats the air around it. The hot air rises. Other colder air on the ground level is drawn in or rushes in to replace the heated air that has risen. The colder air comes from around the bonfire including from behind you and you feel it as a draught or draft.

Hope this helps!

Answer 2

Answer:

the heat from the bonfire heats the surrounding air and makes it less dence , which is why hot air rises . It is replaced by cold air from the sides , which is why you feel a draught