Just a few things... Give a brief description of what you're looking for from your prospective beta. Say what fandom this is for, or if it's an original story. Let the prospective beta readers know what type of story this will be (in general). For example, if it's an erotic story then you really should point out what they can expect to find, so if it contains slash or rape, for example, and the prospective beta isn't into either of those things, they'll know not to bother enquiring. On