Geminis are renowned for their spontaneity, fun and energy which can make them fantastic partners, but they’ve also got a bit of a reputation for being irrational and emotionally-driven. So before you say ‘I Do’ to a Gemini, here’s what you need to know. 1. They Love Sarcasm Geminis have a great sense of humour and often use sarcasm to make jokes. This can sometimes be taken as though they are mocking or teasing you, but it’s actually a way for them to show that they like you. 2. They Aren’t Two