1. I would want to be able to influence people's subconscious evaluations of things - make them see things as more trustworthy, or more dangerous, or something they can ignore.
2. I would silence them. By that I mean take away their ability for language - no speaking, no reading/writing, maybe even not understanding what's said to them. Their thought process would not necessarily be affected, nor their vocal cords.
3. How practical is your superpower in the present-day world? How often would you be able to use it without being caught? (You can only shoot hyperlasers out of your eyes once before people know that you're that girl who shoots hyperlasers out of her eyes.)