Okay, you asked for it, here is goes ....
Here is how I taught my dog, San San, to heel with attention with markers:
1) In a no distraction zone, I would have her sit to the left of me (in a heeling position), mark for eye contact, even just for a split second. I would start out by saying, "Watch me, San San." Reward for every time she looked at me. When she did that reliably, I slowly phased out her name, and just said "watch me."
2) When she would reliably look at me every time I said "watch me," I would slowly increase the amount of time she kept her eyes on me. I went from a split second, and built it up all the way to one minute (very slowly of course). I would give her a negative marker if she were to look away, but I also took that as a sign that I was stretching the time too long and would back up a bit.
3) Then I started introducing distractions (hubby banging on things, hubby walking around, threw things around us) while doing the "watch me" indoor.
3) When she was able to maintain focus under distraction indoor, I would start taking her outside, to the yard, and start the process all over again. When she could do that reliably, I started doing that at parks.
4) I then started to try to get her to understand that she needed to move with me while maintaining focus. That took awhile for me to figure out how I could convey that information to her. What worked for us was that I would have her sitting to the left of me, start walk around her, mark her for keeping her eye contact with me.
5) I would then keep her sitting to my left, told her to watch me, and nudged her (with my leg) to the point where she had to move her butt/stand up, it was initially very confusing for her (and I :grin
, she would give me a look of "what are you doing?" I would just mark her for keeping eye contact with me when she had to move/stand up.
6) Once she knew she was supposed to keep her eyes on me when she stood up. I would tell her to "watch me," pivot 180 degrees away from her, and then act like I couldn't find her, and frantically going "San San, San San, where are you?" Mark for her coming around me to look me in the eyes. Later on, mark her for following me when I pivot.
7) Once she associated the "watch me" with movement (instead of a sitting position) and knew to move her body so she could keep eye contact with me when I pivoted away from her. I started telling her, "watch me," then nudged her, when she took a step while maintaining eye contact, I rewarded heavily. So initially, she was taking more of a side-way step, instead of a forward step. That was pretty easy to correct over time, as she increased the number of steps she was taking while keeping eye contact, I was able to lead her into a forward "heel."
So in a nutshell, that's how I taught my dog how to "fuss." It took me about 3 months of daily practice with her to go through the 7 steps. Patience is the key to success
I am an inexperienced handler, this is my first time teaching attention heeling, so other people will probably have better ideas and can do it in a shorter time frame. My dog was 3.5 yo when I taught her that, I am not sure how that is different from teaching a puppy.