Deists, as a general rule, follow Deism - the idea that a God exists. What that God does or how He/She reacts with His/Her creations is anybody's guess. Before Charles Darwin understood Evolution by Natural selection people couldn't see how life exists without a designer. We understand that better now. Anyway many intelligent people who would be atheists today were deists then. Many deists still exist; while they don't believe in a personal God; they believe that there is almost certainly some being or force who uses science or believes in the "God of Nature".