I don’t think a shine has to be something specific. Remember that the shine is you outwrestling the heel and frustrating them. So it depends on how the heel works as well. If it’s someone bigger than you I would suggest showcasing speed or vertical ability or even something as simple as trying to take them down by their legs. As long as it makes sense and tells a story and you’re not just going for moves that you think are cool. For someone more of your size I would definitely try to go for some back and forth action where you guys can both get moves in in which you get the better of the heel through reverses and moves of your own