Palaver has a broad range of connotations but its basically a long talk:

noun

[MASS NOUN] 1 Prolonged and tedious fuss or discussion:

The Random House Kernerman Webster's College Dictionary reveals the broad usage in various contexts:

n.

1. profuse and idle talk; chatter.
2. persuasive talk; flattery; cajolery.
3. a conference or discussion, orig. one between European traders, explorers, etc., and people indigenous to a region, esp. in Africa.

v.i.
4. to talk profusely and idly.
5. to confer.

v.t.
6. to cajole or persuade.

The OP seems to be looking toward the second noun definition with connotations from verbal definition 6, and a hint of verbal definition 4. If there is a pretense of conversation, palaver is particularly useful.

Gab tends toward idle chatter but might work:

noun

[MASS NOUN]
Talk; chatter:

Palaver has a broad range of connotations, but it's basically a long talk:

noun

[MASS NOUN] 1 Prolonged and tedious fuss or discussion:

The Random House Kernerman Webster's College Dictionary reveals the broad usage in various contexts:

n.

1. profuse and idle talk; chatter.
2. persuasive talk; flattery; cajolery.
3. a conference or discussion, orig. one between European traders, explorers, etc., and people indigenous to a region, esp. in Africa.

v.i.
4. to talk profusely and idly.
5. to confer.

v.t.
6. to cajole or persuade.

The OP seems to be looking toward the second noun definition with connotations from verbal definition 6, and a hint of verbal definition 4. If there is a pretense of conversation, palaver is particularly useful.

Gab tends toward idle chatter but might work:

noun

[MASS NOUN]
Talk; chatter: