Good introductions in PM’s always catch my eye. Like Goodman, I’m a sucker for a little flattery. “So I’ve seen your request thread before and had a good laugh!” It’s an introduction before getting into the nitty gritty of RP, and it’s one that catches my attention because it’s ego stroking, lol.
Alternatively, I always respond if the sender lets a little bit of their personality through the PM. If they’re funny, witty, sarcastic—those are all qualities I look for in a partner because it means, more often than not, we’re going to get along regardless of what the actual RP is about. I don’t necessarily look for RP’s based on the story itself, but more so on whether or not the partner is a good fit. Do I get along with them? Can I shoot the shit every once in a while? Do I feel comfortable around them?
For an actual roleplay, responses that push the story forward and get me thinking always make me feel compelled to reply—sometimes immediately, which is rare for me.
When looking at request threads, I respond to the ones that come off very chill and easygoing. No bolded demands, no list of rules, no secret “passwords” to put in a PM to ensure that I’ve read it. I value having a good time, communication, and being understandable above hard and fast rules. I also respond to people that list out plots as opposed to just pairings. The latter comes across lazy to me, and doesn’t really tell me anything they want out of it. “Human x succubus” could be anything—do you want a romance to develop between the two? Is the human thrown into an adventure through hell? Does the succubus exist to torment the human and make them go insane? Even if none of the plots are things I would normally go for, I appreciate that someone has taken the time and effort to write a little blurb about what they want to roleplay.