When we communicate face to face, we are engaging in direct, personal interaction. However, there are many other ways to express this idea. We might opt for the phrase "in person" to imply the absence of virtual or remote communication. Alternatively, we could use "one-on-one" or "direct" to emphasize the personal nature of the conversation. "Close-up" can imply not just physical proximity, but a deeper connection with the other person. Similarly, "intimate" could describe a conversation that is not just face to face, but involves sharing personal and emotional details. Ultimately, the choice of synonym will depend on the context and the particular shade of meaning we want to convey.