Tango can be danced in many ways. For example, it can be danced in virtual embrace where the two partners dance with each other without actually touching each other. The man leads the woman with a visual signal from his torso to show how he wants her to move, and the woman follows the visual lead to carry out the step. A visual lead is difficult to perceive because it cannot be felt and must be seen. The difference between different signals often is so subtle that it is hard to discern by the eye. It's a challenge for the man to send a clear visual signal and for the woman to apprehend it. Also, virtual embrace lacks the physicality, comfort and sensation of physical embrace. It disables movements that require physical support. Despite these limits, the virtual embrace discloses an important distinction between lead and follow: the former is to plot the dance, and the latter is to beautify the dance. (See The Gender Roles in Tango.) It also reveals the fact that lead/follow is not just a physical process but also a psychological one, requiring mental concentration and comprehension. The awareness of this fact is important because we cannot dance tango well with our feet unless we can dance it with the heart.
Experienced dancers may also use some variations of close embrace to increase movement possibilities. One variation is the V-shaped embrace in which the two partners are connected by one side of their torsos and leave the other side open. Another is to increase the gradient of the bodies to allow more space between their legs. The combination of the two is still another option. These variations require flexibility and stamina of the body. In reality, dancers often switch from one variation to another in the dance. For example, when doing ochos, the woman may change from one side V-shaped contact to a chest-to-chest contact to another side V-shaped contact.
The choice of embrace is affected by many factors, such as the physical conditions (flexibility and stamina), styles (movement inclination or feeling inclination), purposes (social dancing or performance), environment (floor density and milonga codes), music (fast or slow tempo), movements (fancy or simple, large or small steps), maturity (age and experience), and genres (tango, vals or milonga) etc. Every embrace has its merits and limits. Dancers may alternate from one embrace to another embrace in the dance. Mixing different embraces may bring their skills into full play, thus increase the expressiveness of the dance.