-the show LOVE at the Mirage is great if you like the Beatles music.
-If you have time and have never been to Vegas, Go down to old Vegas (Fremont Street) for a couple hours one night and check out the light shows which starts every hour on the hour. Pretty neat.  
- Joe's in bottom of Caesars Forum is great restaurant and I just sit at the bar and have dinner when I am in Vegas alone. Their oysters and the Wedge salad is good little dinner, Steak is great but too much for me normally.
- Check out who in performing at the Colosseum at Caesars while you are in town, maybe someone you would like to see.
-Egg Benedict at LUX Cafe in Venetian is wonderful for breakfast if you like that dish. And well LUX cafe is pretty good period for breakfast or lunch.
- Free shows, Fountains at Bellagio, Volcano at Mirage.
-Depending on where you are staying, a little pool time with frozen fruit drink is nice way to spend a couple hours and get some sun.

Oh, not that you would be interested but, Vegas has the most beautiful Women in the world!!!!!!

If you like hiking and the outdoors, both sites are fun to visit. You'll need to figure how to get to each. I always have a car when I'm in Vegas, so I have no idea how expensive uber or lyft would be.

I enjoy Cirque (Beatles, KA are my favorites). Good gyms in the area (if you are driving). Plenty of shopping, restaurants and other shows to see. I would visit some of the good spa's in town.