I'm applying for jobs via email and wondering how to phrase my subject lines. For a lot of the positions, I'm emailing someone I know/have talked to before asking whether or not they have anything open for a person of my abilities. When I send something cold I usually phrase it as 'Introduction - Firstname Lastname' or if it's a position that's even easier. But if it's someone I know, what should I put? 'Job inquiry - Firstname Lastname'? idk ;__; Especially since at some of the firms it's not obvious to me exactly what kind of position I'd be applying for (like I'm qualified in general to do the kind of work they do, but don't know specifically). Tips plz?