Your website may have a form that visitors can fill out for you to get in contact with them, but there is no time like the present to inform your customer. People want to talk now if they have a question about your products or services. Embedding a simple live chat box in the bottom right hand corner of a website will help convert visitors into sales.
A similar option is linking a button to Facebook Messenger for your business page. Again, same principle; you may even get a page like and follow out of having this feature so that they continue to see your content.