Welcome!
I think, as far as cursory greetings go, you've just hit a streak of bad luck. Friday nights tend to be sparse, so perhaps people are returning to inns with less thought of socializing, and more thought of resting up to continue whatever they were about.
Personally I love the random encounters that inns can provide, but there are those times when I'm tired, I just have that one more goal I want to attain and then log off...
If you present yourself as new (to the inn, the city, the country) and esp. if you have 'New to Pyrathia' in your title, most will make more effort to slow down and interact, in personal experience.
Also, don't forget you can use the TELL command...find a likely title on the WHO list. (I have trouble with this one myself, but we can't all be introverts.
)
Hope this helps, and have fun.