This reminds me of feature I liked about Google's Duo app (like Facetime): send a heart. It's pretty clear what the heart means in the context of a video call

This reminds me of feature I liked about Google's Duo app (like Facetime): send a heart. It's pretty clear what the heart means in the context of a video call app: "I am currently thinking about you and wouldn't mind a video call, if you want to." It solves the problem of instant-anxiety of getting an impromptu video call when you weren't expecting one. Unfortunately now you can send one of 10 different emoji instead of just the heart, complicating the feature unnecessarily by adding more bits.