The most intelligent people are usually the ones who aren't in your face about it.
Here are six signs, as suggested by redditors, for spotting the secret savant in your life.
They know what they don't know.
The sign of intelligence is that you are constantly wondering. Idiots are always dead sure about everything they do in their life.
Quick sense of humuor.
I think people who ask smart questions are smart. Listening/learning valued over talking themselves. Probably also someone who is able to talk about a wide range of topics. Curiosity is key.
Better use of vocabulary, not big words, but how they structure their sentences
When they are younger, a sense of understanding beyond their years. Usually a more mature sense of humour too.