Sun sign compatibility test, is it enough to judge someone or the relationship itself? The answer is a complete ‘no’. Yes, we all have seen many commenting ‘Oh! I am compatible with the water signs’ or ‘ew!!!!!! He’s a Gemini, the most incompatible to me!’ Now I know that Gemini are jerks for some the scorps too [just kidding ;) ] You may find behavior pattern in people with the same sun sign, but it’s too broad and far fetched to come to any conclusion.