The moment when communication or a connection has been accomplished with the stalkee of your efforts. This may involve speech or a brushing of the arm when the stalkee walks past the stalker. "Stalk" can be substituted for the codename of your stalkee.
"OMG did you just see that COOK-contact?! I just bumped into him!"
"Awww I loved that stalk-contact today, I love talking to ZIP!"