I'm trying to find the name of a short story or novel from the '60s to early '80s.
The human and the alien partner travel in space, solving mysteries or fighting bad guys or just getting rich. The alien's cute looks lead to him being underestimated by opponents. He also does not like being petted by random children who see him.
It could have been by Poul Anderson or someone similar to that. We were reading him and Niven and Pournelle in those days.