It's nothing. / Don't mention it.

Excuse me. (formal, to get attention)

Here you go. / Please, go ahead.

Not at all. (humble reply to thanks or praise)

If I may ask... / Could I please...

That's very kind of you. (formal)

Bless your hands. (after food or work someone did)

Courtesy - Yoones

Courtesy

Education - by Yoones

turkishdaily-talk

Please, thanks, sorry, and other everyday politeness.