The phrase "positive sign" usually means something good or encouraging happening in a situation. It can refer to an indication or evidence that things are going well or heading in a positive direction. Full definition
To sum up, the market is showing a lot of positive signs for more bullish action this month. (cryptonews.com)
I watch diligently for positive signs of transition and step in quickly if baby needs me. (mountainvalleymidwifery.com)
While we do see positive signs in parts of the economy, many firms still show some reluctance to commit to significant investment, often citing a range of uncertainties. (rba.gov.au)