the act of standing in close proximity to a person of interest for a long period of time, eavesdropping with the hopes of jumping into the conversation. Feelings of intimidation, anxiety, and inadequacy usually prevent the person from succeeding, they just end up making a fool out of themselves. This would happen at social events (bars, parties, seminars, business conventions). Intentions can be sexual or job related (networking).
Matt has been stalking to that girl for an hour! why doesn't he just step into the group and ask her out so she can shoot him down!
Tom will never get that position at Leiman Bros if doesn't stop stalking to their CEO. That is bad from; he is completely out of his league!