Mind how you go American British informal
1. Used when one says goodbye and asks others to take care.
Thanks for coming over! Mind how you go!
See you next week! Mind how you go!
2. Used to remind someone to be careful.
Mind how you go with that sharp scissors or else you can hurt yourself.
Mind how you go with that pieces of glass on the floor while I am taking broom.
Goodbye.
A nice farewell, usually given after having had a wonderful time
Used to say that you have to go even though you want to stay longer
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.