> * Have a professional profile picture
I don't do this, for two reasons:
1. Being a photographer taught me that I'm much better on the buttons side of the camera, not the lens side.
2. Photos really don't belong in hiring in the US. Due to the long history of unfair prejudices, which are still ongoing in some ways. Even better would be if we could remove names, for being cues as to gender, racial/ethnic background, caste, and other socioeconomic status. But photos are easy to eliminate from hiring processes, and in fact we were rid of them in the US, until "social media"-like sites like LinkedIn reintroduced photos to resumes.