wireguard successfully installed, but where to go from here?

total 32
drwx------ 2 root root 4096 Jul 9 08:31 .
drwxr-xr-x 70 root root 4096 Jul 9 08:32 …
-rw------- 1 root root 45 Jul 9 08:31 client_private.key
-rw------- 1 root root 45 Jul 9 08:31 client_public.key
-rw------- 1 root root 45 Jul 9 08:31 server_private.key
-rw------- 1 root root 45 Jul 9 08:31 server_public.key
-rw------- 1 root root 1357 Jul 9 08:31 wg0-client.conf
-rw------- 1 root root 1157 Jul 9 08:31 wg0.conf