Adding a live chat on your site can help a lot with better customer experience, which leads to better sales for you.
That's because prospective buyers can communicate with you right away and you can answer their concerns on the spot as well.
There's a lot of live chat solutions out there but you can simply take advantage of your FB page messenger.
I'm using Manychat (which I'm paying monthly) to do me FB messenger marketing but I found a great alternative (and it doesn't have monthly fees)...
It's called Socilead Messenger. Here's a demo...