That's all there is to it - and probably stand by to get pulled over on several occasions.
Make sure it is in full view - no shirt over it or tucked in the pants etc. - and do not get into any motor vehicle with it strapped on - it is considered a concealed weapon at that point - and in that case the weapon must be disabled from firing and out of the reach of anyone in the vehicle.
Check the Ohio Attorney General's web site for details on where you can and cannot OC. Also check out the Ohians for Conceal Carry web site http://www.ohioccwforums.org/ They have a forum on OC.