Handshake

The handshake is one of the freely available interactions. It is also the shortest interaction available, which makes it a prominent candidate for increasing intimacy.

Efficient shaking
For those eager to get as much intimacy through interaction in as little as time possible, it is of utmost importance to shake efficiently, with as little mouse movement as possible.

This can be achieved by positioning the camera at such an angle that the other character lines up in such a way that clicking the dual interaction button overlaps the interaction option. If the mouse is not moved after clicking 'dual interaction', a second click will both perform the interaction as well as open the dual interaction menu again, which allows for a second shake in rapid succession.

The video below shows this efficient procedure.