Greetings

His pranks are mostly harmless, but can be quite annoying. There’s the typical gluing coins to the ground, changing or removing the signs of push or pull doors, and there’s classic shock toy pranks. Small stuff. Oh, but he does enjoy doing more elaborate ones. Like adding googly eyes to all of Crowley’s plants or taping things to the ceiling! Tasteless, but mostly harmless. 

Also, no need to apologise! It’s a lot of fun to come up with all this even though I hadn’t planned to go into further detail other than the designs :P Thank you for asking!

Oh absolutely! He’s very much a demon of self-indulgence, hugs included. Heaven isn’t there to judge (they already have) and Hell doesn’t care about what he does so long as he gets the job done. Though this Aziraphale likes to play pranks on people instead of doing magic tricks. Keep that in mind when you give him a hug (￣∇￣)

I wouldn’t put it past him doing it in order to mess with people xD. I’m imagining the dimly lit, old fashioned bookshop or library during a quiet evening (he keeps the store open until ridiculously late hours) and Aziraphale spooking random customers with either hoots or screeches when there is a lull in the shop. There’s now a rumour that Mr. Fell has a pet owl, not often seen, but some customers swear that they’ve seen it.