In Greece, 6 pm is afternoon coffee time, not dinner. But anyway if you're invited to someone's house at 6 for anything, it would be very impolite to show up before 6:30, as nothing would be ready and the host would probably not even be dressed yet. Some time between 6:30 and 7:00 would be normal.

In Norway, in my experience when you're invited at six you're expected to ring the bell within a few minutes of 6:00, but I guess you're sort of OK within 10 minutes or so. People text to say sorry they're late even if it's 10 minutes late.

In two experiments we used a flanked masked (75 ms) visual word version of the visual world paradigm with five flanking conditions: none, repeated symbols, unknown font strings, pseudowords, and words. Flankers interfered with activation of the target word, more so for frequent words.

Hey guys! Thumbs up from me too :-)

LQ is not only about the detailed content. It also requires strong and redundant connections among the three domains.
As for improving them, I would say that reading is the established way.