"free interaction" is correct and can be used in written English.
It typically refers to the way in which people exchange ideas and information without restriction or limitation. For example, "Group meetings often create an atmosphere of open and free interaction which can result in innovative ideas being shared."
In the free interaction condition (FI), both the demonstrator and the observer could freely move and interact within the cage; a feeder filled with sunflower seeds was located between the two central perches; in the other two experimental conditions, a transparent Plexiglas wall placed between the 2 central perches bisected the cage.
By offering a setting for free interaction, such sites provide the online equivalent of comfy chairs.
The Xbox Kinect™ has advantage over similar consoles, with controller free interaction utilising three dimensional motion capture software.
(This is not the case in more-restrictive nations, such as Russia). No matter what Moscow's policy holds, the free interaction of Americans with foreign ambassadors works to America's advantage.
China's stubborn adherence to mercantilism, though, is a real problem, both for the United States and for the Chinese people, to whom it denies the benefits of maximally free interaction with the rest of the world.
Social media have allowed people to find others with similar interests and points of view, subverting traditional social walls that prevent free interaction, and then they can keep in touch discreetly, through cellphones and instant messaging.
This inflexibility may prevent free interactions between learners and educators, negatively influencing the educational processes.
Although Joehana rejects forced marriage, a common practice among the Sundanese in the early 20th century, and promotes the idea of marriage for love, he also warns against the dangers of overly free interactions between men and women.
During free interactions, aggressive behavior between males limited social transmission.
Indeed, aggressive behaviors between males prevented social transmission during free interactions.
Complete social transmission only occurred after free interactions (FI) with a demonstrator either male or female.
