Seasons I'd sorted into trends, and found the following focus themes to be true:
Spring: Direct Others
Summer: Direct Self
Fall: Indirect Self
Winter: Indirect Others
Direct vs Indirect refers to their conversation style, whether they are more prone to forwardly saying what they mean or if they are more prone to referring to other things to get the intended point across.
Others vs Self refers to the focus of the conversation, what they are really looking at when they are stating things that can then be reflected in word choices. You for example see Leo, a mid-summer sign, much more prone to self-reference than other signs, while Aquarius being a mid-winter sign are more prone to trying to shift it towards other people. The above quote is a part of why opposite sign combinations can end up a bit strange when compared to more complimentary placements.
To clarify, the season system above only makes sense in a direct way over Sun signs, but the signs that correspond to those placements for moon and ascendants tend to follow the same focus themes. Aries/Taurus/Gemini constitute the range of Spring for example, but you could have a Taurus moon born in Fall over how Moon an Ascendant follow a different calendar speed. When I refer to a season, I am using that as shorthand for the season's corresponding three signs.
When you consider how people turn out in conjunction with the demands of each season, you start to see things go a bit parallel. It's kind of neat to compare to things like literary themes that aim to personify seasons.