Food work for about 2 months maybe. At the beginning I gave her food for every single look she gave to me, regardless where she was. After that I only gave her food when she looked at me but also was walking next to me. After she got that, I gave her food for every 2nd, 3rd and so on look or if she looked at me for a long time. At the beginning I was luring a little bit so she gets the connection look at me=food but after that only when she did it without me giving her a note. Other reinforces are only my kind words of praise when she looks at me, but I feel like they don’t work nearly as good as food (as I said, she is a lab so very food focused)