manipulating

present participle and gerund of manipulate

(transitive) To move, arrange or operate something using the hands
(transitive) To influence, manage, direct, control or tamper with something
(transitive) To handle and move a body part, either as an examination or for a therapeutic purpose
(transitive) To influence or control someone in order to achieve a specific purpose, especially one that is unknown to the one being manipulated and beneficial to the manipulator; to use
(dated, intransitive) To use the hands, especially in scientific experiments.