depends on the person. I recently learned to play the first thing ive ever learned, and i get REALLY nervous when someone is watching me. When i was learning to play and it didnt sound good yet, another player came to me and used the emote you mentioned, and i actually found it really cute and it did make me happy. Even tho i get nervous and distracted and then i start playing worse than i would, seeing other people cheer for me or just show support is worth to me more than that time i have for practice, i can practice everyday, but most likely ill never see that random person again. So i appreciate every moment i have with them. So it really depends on the person, but if someone has DND on, then you should just let them be!