Creating buff to interaction.

Hello. I want create buff, which is getted after washing hands example. I create only buff by Mod constructor v4. Set name of buff, description, emotion weight and time. I save it as .package. I open this buff package in sims 4 studio and I have in this package languages and information about this buff. Now, I want, that this buff is getted after washing hands. I click on tuning extract and I find interaction - washing hands. I add this interaction to this created buff .package and I save it and paste this .package to mods folder. I run a game and I want try it, and buff isn´t getted after washing hands. How can I create it? I create it bad, if it is not working? Can you help me, with this problem? "How add buff to interaction." Thanks for help.