Whatever you normally do is fine, just keep it business. Don't start a conversation, and if he does be nice, be polite, be friendly but don't get sucked into any 'us' talk.
Will do!
M:43/ H:39 T:12/ M:9 S8, D15 M affair(one night): 2/09 M EA: 2/12-7/12 D:6/7/12 H: GF since 7/24/12
God,Family, and the Green Bay Packers. - Vince Lombardi