There's a ton to do in Los Angeles! Here are some suggestions. In addition, check out Thrillist.com Los Angeles for a great guide on restaurants and things to do.
Little Tokyo
Los Angeles, CA
Great area to get Sushi, browse Japanese stores, and Mochi.
Arts District Los Angeles
Los Angeles, CA
Hippest part of town with breweries, great restaurants, and some cool art.
Universal Studios Hollywood
100 Universal City Plaza, Universal City, CA 91608, (800) 864-8377
Great amusement park only 20min away from downtown (non-rush hour)
Griffith Observatory
Los Angeles, CA 90027
Seen in countless movies plus a great place to learn about the stars (the one's in the sky)
Crypto.com Arena
1111 South Figueroa Street, Los Angeles, CA 90015, (213) 742-7100
Basketball doubleheader (Lakers and Clippers) really close to Hotel Figueroa on Sunday 1/15
Venice Beach
Los Angeles, CA
Great place to walk and see all the strange folks L.A has to offer! You can also swing by Santa Monica, Abbott Kinney, or Marina Del Rey. They're all close to Venice beach. The Whaler restaurant and Hotel Erwin are great spots to catch the sunset.