If you care to be grammatical with “like” and “as though,” remember this mini-rule: Like a Pig, As Though I Were a Pig.
The word “like” requires a noun or pronoun. Like a boss, like a llama, like an idiot . . . you get it.
The phrases “as if,” “as though,” and the like (don’t hit me) require a verb of some kind. As if I were a king, as though I were a llama, as if the idiot became wise.
This page is very helpful.
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