Writing dialogue and actions in present tense, but describing the scene in past tense.
EX. “I don’t know,” you reply, barely listening to Cali at all. You were laying face down on your stomach, while Cali sat beside you, fiddling with the ends of her hair. A picnic blanket under the two of you. It was a lazy Sunday afternoon and you and your best friend Cali took to the balcony of her house to get some fresh air after being inside watching films most of the day.
OR
“I don’t know,” you reply, barely listening to Cali at all. You are laying face down on your stomach, while Cali sits beside you, fiddling with the ends of her hair. A picnic blanket under the two of you. It’s a lazy Sunday afternoon and you and your best friend Cali take to the balcony of her house to get some fresh air after being inside watching films most of the day.