I'm currently coding equipment items for version 0.2.6, which will also introduce traders.
You can use hypnosis actions in conversations and sex and battle scenes if you get them by picking the boon of suggestion, somewhat around day 10. In version 0.2.5 (which is not yet free), you can also select a non-canon option at the start of the game that gives hypnosis actions to the NPC Candidates. There will be more hypnosis actions and canon ways for all Candidates to learn them in future versions.
Thanks for your encouragement!