The three arrows icon on humans I pointed out last week. I suspect it's "pick a skill". In this case, the choice is persuasion.
Drow still have an active spell icon that looks like a tree. So don't know what is going on with them.
The Githyanki active "book" icon is probably from the latest PnP version:
Astral Knowledge
You can mystically access a reservoir of experiences of entities connected to the Astral Plane. Whenever you finish a long rest, you gain proficiency in one skill of your choice and with one weapon or tool of your choice, selected from the Player’s Handbook, as you momentarily project your consciousness into the Astral Plane. These proficiencies last until the end of your next long rest.
