Aw, come on, mentioning Kakao Friends without Apeach? :) https://scontent.cdninstagram.com/hphotos-xaf1/t51.2885-15/e...

My last trip to Seoul I even picked up an Apeach pillow and set of peach-butt coasters from the Kakao store. Love that dude.

These are stickers for sure. My Asian friends and family use them all the time, including as replies on their own. Even my parents and 70-80+ year old relatives do this with regularity. The extra context that these stickers add are very useful and I wish they were more popular among my non-Asian friends. Somehow little rows of emoji and Slack reactions are just not quite the same.