＼＿ﾞヘヘ(・ω・´o)

Floating near the top of the line, right after the ＿, is ﾞ: two tiny strokes that make up a dakuten, the mark Japanese adds to kana to voice them, so カ (ka) becomes ガ (ga). This one is the half-width form (HALFWIDTH KATAKANA VOICED SOUND MARK), and in half-width katakana it's typed as a separate character after the kana it changes, as in ｶﾞ. Here the character in front of it is that ＿, which has no sound to voice, so the mark just hangs in the air, like the clatter of keys or a blur of busy hands. To its left is the laptop. ＼, a full-width backslash (FULLWIDTH REVERSE SOLIDUS), slants down from near the top of the line, and its lower end almost meets the left end of ＿, a full-width underscore lying flat along the bottom. Seen from the side, that's a screen tilted back and the base with the keyboard. To the right of the dakuten come two katakana ヘ (he). Each one is a little peak with a short stroke dropping to the left, toward the laptop, and a long one dropping to the right, toward the face, so they read as two arms reaching out from the face, fingertips coming down toward the keys. The face itself, (・ω・´o), has no spaces at all. The left eye ・ comes right after the opening parenthesis, and both eyes and the mouth ω, the Greek omega, sit toward the left side. After the right eye comes ´ (ACUTE ACCENT), higher than the eyes and rising to the right. It's the same character in the same spot as the right eyebrow of (｀・ω・´), the classic determined face, but there's no left eyebrow here. Then, just inside the closing parenthesis, there's a lowercase o, as tall as the ω. With the eyes and mouth pushed to the left and ´ and o filling the right, the face looks turned toward the laptop, and the o reads like a round cheek. That one raised brow gives it a focused, all-business look. On X, it showed up inside a post, right after a line that said, roughly, "Diary sent, at this hour again!", and the face itself was followed by カタカタ (katakata), the Japanese sound of clacking keys.