Guerrilla advertising refers to less conventional methods that are generally low-cost and employ creative techniques to draw attention. A common strategy in this category is ambient advertising, in which a company places ads in public places but uses an unconventional manner.
Guerrilla marketing sometimes invites public interaction or participation. For example, the advertisement may encourage individuals to take a photo with the ad and post it on social media using a hashtag. That is why companies using guerilla advertising aim for eye-catching ads — to entice consumers to interact with their content. Advertising via word-of-mouth can serve as an effective and less costly way for companies to build brand awareness.