M. Antonia Fornés Pallicer and Mercè Puig Rodríguez-Escalona write on ‘Non-Verbal Communication in Ancient Rome: Eyebrow Gestures’ in Languages 9:92 (2024), 18 pp.
There are references to Sidonius Carm. 15.189-90 and Ep. 8.9.2.
Read here online in open access