Start at က, work your way through Unicode in order: https://en.wiktionary.org/wiki/%E1%80%80#Translingual Some helpful Mon nationalist even made a writing animation for most letters before he got banned from Wikipedia. Fun fact: ပ is made with two strokes from opposite directions instead of a single one like you might naively expect.

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contingencies 44 minutes ago | parent [-]

I am fairly sure this is because, in many abugida scripts, the dominant writing material was palm leaf and the tool was a sharpened point or curved scalpel-like knife rather than a pen. If you curve inward from both sides, you don't have to contort your hand in a 180 degree pattern, which runs the risk of tearing the palm leaf. This is also why the shapes are all curves instead of hard 90 degree angles.

	▲	yorwba 11 minutes ago \| parent [-]
		I've read that theory, too, but ဂ is written with just one stroke and if you look at palm-leaf manuscripts in general https://en.wikipedia.org/wiki/Palm-leaf_manuscript there are plenty of angled shapes. (Ironically, the example Wikipedia uses for Burmese has a more square style instead of the now-dominant curves.) So I wonder whether it's all just a post-hoc rationalization for historical happenstance. It would be interesting to know whether e.g. Sundanese ᮕ is similarly written with two strokes.