Not sure what you mean by"firm" . A peach can be firm or a person can make a statement about something and not change his/her thinking can be firm. I also don't understand why you would want to change a person from being firm.
Poke them back harder.Tell them to stop kindly.Say "knock it off" in a firm voice.
to stop your dog from being clingy, you must be firm with it, push it away soon it will realise that you dont want it round you all the time.
Tell people to stop eating them
be quit
* Some people are so intense on helping someone that they come off sounding patronising. Be kind, but firm and tell them exactly how you feel. Honesty is always the best policy.
Stop being materialistic and start being more grateful for life and the people you have as friends and family.
stop dropping litter and tidy up the world will stop us getting extinct!
Strawberries!
to stop people being sick
It made people stop being bare.
Sometime after the death of FDR and 1950
No, aggression is not a cure for hatefulness.