Negotiating tactics involve the use of FEELERS, which are subtle attempts to gauge the other party's position in a negotiation. FEELERS can be verbal or non-verbal cues that allow the negotiator to assess the other party's interests and objectives. They can also be used to test the waters and see if the other party is open to compromise or willing to make concessions. FEELERS can be an effective way to gain insight into the other party's position without making any commitments.