to remember, to recognize, to look familiar

(2channel slang, Internet slang) exclusively lurking

(colloquial) Contraction of 見ている (miteiru).

所見: (Classical Japanese, archaic) to be seen, be found

prying eyes; people who may be watching / the quality of being perceptive, observant / appearance, look

Onomatopoeia for the sound of coughing.

(Internet slang, derogatory) talking about oneself whenever possible; self-centered

Watch yourself, be careful, literally, "keep your health" / take care (used when parting)

(idiomatic) to be unable to stomach, sticking in one's throat

a demonic or devilish aura, energy, mood, or atmosphere