Talk together in English.
Label household items with their English names.
Read on-line newspapers or magazines with your spouse, translating and pronouncing words as you go.
Have your spouse imitate your enunciations of familiar English words.
Rachel's English and Pronunciation Pro are two very helpful Youtube channels for free content and videos.
Share a meal with another English-speaking person or couple.
Contact your local community agency or a local church to see if they off ESL (English as a Second Language) class.
I hope you find these ideas helpful.