Assignment for my students: Let's go beyond the pauses, and observe what Santiago and Amy do with the syncopations throughout the second video. There's nothing formularized - each solution of theirs is deliberate but different. For example, at 2:23-2:29, he walks with short, syncopated, forward-and-back steps, somewhat similar to what we've been working on. Alternately, notice how he walks the syncopations with long, deliberate and precise steps at 1:45-1:47, notwithstanding the closeness of the beats.
This song, "Recien", recorded by the orchestra of Ricardo Tanturi with singer Enrique Campos, is loaded with syncopations that you can play with! They often occur "underneath" the music, while Campos sings smoothly. That's one of the games Tanturi plays with his orchestrations. Santiago and Amy never ignore them! Sometimes you'll see Santiago moving slowly, but Amy syncopates with her embellishments, such as at 1:25! Have fun observing, and pick one or two of their responses to the syncopations that you would like to try.
If you found these comments interesting, you're sure enjoy my Tango Musicality, module #8 in my 9-module Permission Seduction™Tango Learning System!