We're going to give the sesame oil a nice arom: cut the ginger, crush the garlic and put them with the sesame oil in a small pan on low heat until it starts to bubble. Turn it off and leave it too cool down to room temperature with the ginger and garlic inside.
Remove the skin from the salmon.
Remove the brown meat from the salmon as it's stronger in taste and doesn't look nice.
Cut the filet into nice cubes. Don't make them too small so that you can actually feel the salmon in a mouthful.
Cut the chives as fine as you can, also cut the shallots really small as well. Mix them with the sesame seeds and our amazingly-smelling sesame oil (remove the garlic and ginger first).
Add the soy sauce, lemon juice, avocado in cubes and salmon, and that's it! Taste and add salt if necessary.