Depends on the situation, you usually wait for her to cool down and when you see she has, do something she likes then hug her and say I love you and dont stop until she says that she is gonna do whatever she is doing there

Clean the house.. buy flowers... get her a warm bath,, cook dinner...give her a back massage.. do the laundry... make her cookies/brownies.. if legal give her a glass of wine.. wash her night clothes... do what she wants to do... get her outside... get her a treat, like ice cream... talk/ listen...

be good to her..

spent time with her...

do what she likes to do.like you may both watch her favorite movie together...

help her whenever possible without waiting for her to ask...

and at last but the most important show that you love her..just tell her often... :D

Buy her a pot of flower and say "Cheer up!"

Offer her some good good lovin'

Give her a cookie.

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