Difference between Little talk and Small talk

 little talk—

1. a brief comment or address:

• Let me illustrate by a little talk, which I think will have the twang of realism about it.

2. a short conversation:

• “Mr. Baker and I had a little talk about you today,” Newton said.

small talk—light social conversation about unimportant things:

• After Willoughby was gone, Karen tried to make small talk.

Note: Neither expression is antonymous in meaning to the phrase big talk—(also: tall talk) boastful or pretentious talk:

• We don’t want big talk from an armchair critic.