What was the British policy of impressment during the Napoleonic Wars?

British impressment involved rounding up able-bodied men
at docks and taverns and forcing them to work for the
Royal Navy.

British impressment involved forcing neutral ships to
submit to searches by the Royal Navy and seizure of any
goods meant for France.

British impressment involved attacking and boarding
neutral merchant ships and forcing the captured crew to
serve in the Royal Navy.

British impressment involved forcing neutral nations to
trade only with Britain and its allies and terminate all
trade with France and its colonies.