Unions frequently use picketing to publicize a boycott.

Picketing is a common tactic used by unions to draw attention to their cause and increase public awareness of a boycott or strike. Picketing involves standing outside of a business or workplace with signs and banners, and may include chanting or other forms of protest to encourage people to support the boycott. This can be an effective way to build support for the union and put pressure on the company to negotiate a settlement.