“…Visual feedback evidently is the richest option, but it may have serious drawbacks in that it could be distracting and is potentially nondiscreet. Some feedback manifestations are designed to disrupt the natural environment as little as possible, such as those integrated in game mechanics (e.g., Nacke et al, 2011;Reitz, Stockhausen, & Krömker, 2012) or ambient light (Djajadiningrat, Geurts, Munniksma, Christiaansen, & De Bont, 2009;Snyder et al, 2015), whereas others are designed to increase feedback salience at the cost of increased obtrusiveness, such as an arousal meter (Astor et al, 2013), tangible avatar (Gervais et al, 2016), or butterfly bracelet (MacLean, Roseway, & Czerwinski, 2013). Overall, consideration of the situation and social context is extremely important while weighing pros and cons of different feedback delivery modalities, taking into consideration matters concerning feedback salience, (un)obtrusiveness, privacy, as well as light and noise conditions.…”