Socially assistive robots are those which should provide some helpful function through their social interactions. This is really all about social influence – designing socially persuasive and hence influential robots that can induce some desirable behaviour change in the user. Literally, using robots to make ‘better’ humans. However, it’s hard to do this well, and potentially at least a little bit ethically questionable. This is where the humans come in – (most) humans are pretty good at this social stuff and some (e.g. therapists, teachers) are expert at it. They can also help us roboticists figure out exactly what our robots should (not) do, and to think about the broader social impact of our work. So clearly, we should be working with humans to make better robots. In this talk I’ll draw on examples from my work to demonstrate how both of these things can be done in practice, and try to convince you that working on these two goals simultaneously is the best way forward for engineering effective and meaningful human-robot interactions.