Questions & Answers about Uso poco mascara, ma mi piace così.
Here poco means a small amount of.
So in uso poco mascara, it suggests using only a little mascara, not putting on much of it.
A learner should know that poco can sometimes refer to frequency too, depending on context. But in this sentence, with mascara, it most naturally suggests quantity rather than how often.
Compare:
- Metto poco mascara = I put on only a little mascara
- Uso raramente il mascara = I rarely use mascara