Everyday social interactions

But these expressions, and there frequent use is very necessary in today's world, no doubt. (Unless you want to look ungrateful or rude)

So to have a real impact on people with your "thank you"s and "sorry"s, I recommend adopting the following strategy:-

Prepare around 2-3 different forms of "sorry"s and "thank you"s.

One for a formal/casual use

For example, when you bump into someone

Use these as your day-to-day needs.

The others being for expressing true gratefulness/apologies.

For example- apologizing for a huge blunder.

Use these VERY rarely, only when you truly mean it,

Hope this was worth reading