What chat options are you offering to your visitors? More and more of them want to chat using WhatsApp, Telegram and other chat apps. This also helps you, because now you can continue the conversation after they’ve left your store.
I have created an overview of more than 20 contact options in a Google spreadsheet. Hope it is useful. Feel free to add and improve: https://docs.google.com/spreadsheets/d/1BCJEv5FwBxv1-9pT4WH4KGjbBDWp3RqGeCNBnz4DjZU/edit?usp=sharing
I also am working on a product that makes this even more simple. Maybe it is interesting for you: https://boei.help