WYR: Have the ability to talk to house plants or the ability to shoot a tiny harmless puff of glitter out of your fingertips.

Talking to house plants could be turned into a new life as a spy or PI (albeit a very niche one). I don't imagine plants would be super talkative so it probably wouldn't get too annoying. Glitter finger farting doesn't have any uses I can think of besides pranks and crafts. So I'll go plants.