You can use a short video advertisement and encourage the target prospect that is watching this video to take the next step on your offer; whether that is scheduling a call with you or visiting your online store.
As a general rule of thumb, humans feel safer around people they recognize. You can use that Law of Familiarity to your advantage by following your target prospects that have expressed interest in your product or service with a short video.
The more they see your face, and hear your voice, the more likely they are to trust you to take the next step.