chills, chills out(slang), decompresses, de-stresses, loosens up, mellows (out), relaxes, unwinds, winds down

unbendsbasks, kicks back, lolls, lounges, reposes, restsbums, dallies, dawdles, dillydallies, drones, footles, goofs (off), hacks (around), hangs (around or out), idles, lazes, loafs, vegetates, vegges out(or veges out), zones outalleviates, comforts, eases, relievescalms, composes, cools, quiets, settles