[1_player]

There are different degrees of gratitude you're expressing with a "thank you":

- Thanking for an ordinary action, i.e. after buying something at a shop: no answer.

- Thanking for something that didn't cost me very much, i.e. lending £20 to a friend: I usually answer with "no worries (mate)".

- Thanking for something that cost me in some way (time, money, effort), i.e. helping pushing a stranger's car on the street: "You're welcome".