Zorayas said:
maybe not so much a quirk as somthing that gets on people's nerves. I'm not sure what you call that.
Well, I tend to not like to play with those who create characters to annoy me, and try not to create intentionally annoying characters in kind. But for what it's worth, here is some advice.
1. Choose some kind of physical mannerism. It should be easy for you to remember. For example, you might stroke your chin when you are thinking. Mannerisms can be a nice, subtle way to add texture to your character. People will pick up on the different body language.
2. Here's one that I've liked in the past. It works best if there are others in your group who are sensible. When certain problems come up, look around the table and announce in a strong, confident voice: "The answer is quite simple." Then launch into the most complex and outlandish solution you can think of.
3. Chaos is inspiration. As he's adventuring, perhaps your PC is constantly thinking up new spells, and being inspired by what he sees. So when your party faces the white dragon, you might get an idea for a White Dragon's Breath spell. Or when the party fighter rolls a critical miss, he might get an idea for a spell named
Ray of Incompetence. Make sure your PC talks these ideas over with his familiar.
