Use 'or so' to suggest that a number is not exact and could slightly vary.

Varying Estimates

'Or so' is often used in casual discussions where precision isn't required.

Casual Conversation

Time estimates with 'or so' allow for a comfort zone, indicating flexible timing.

Use 'or so' to present an informal list of choices where options are not exhaustively listed.

It suggests there are more choices, but they are not specified or are of less importance.

In conversational settings, 'or so' adds vagueness and can soften the decision-making process.