Answer:

warmed

Answer	Crossword Clue
WARMED	Limbered (up)
WARMED	Prepared leftovers
WARMED	Heated up

WARMED	Became animated (with "up").
WARMED	Grew friendly.
WARMED	Grew more interested
WARMED	Became friendly
WARMED	Basked
WARMED	Became friendly, with "to"
WARMED	Thawed
WARMED	... up to (became genial)

WARMED	Loosened (up)
WARMED	Got friendlier
WARMED	Microwaved briefly
WARMED	Became enthusiastic

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.