Mounting shares (called “Shared Folders” on the DiskStation) in OSX is very easy. In Finder, click Go -> Connect to Server. Depending on whether your share is available as AFP (Apple Filing Protocol) or SMB (Samba), you enter afp://192.168.1.2 or smb://192.168.1.2 respectively.

Click Connect, then select the shares you want to share. Easy.

However, More >