Emotes - how do you use them?

[Bread]

I spam the mister DNA laugh emote when someone starts to spam the yawning emote

[Tielenaar]

Point and laugh at every rat I ever see.
Other than that I use them with respect. Cry when opponent shows no mercy, shrug when opponent does something that makes no sense.

[Dyldorz]

My response to everything now. Insert bumpy emote here.