I do not know single person who have never played with LEGO bricks. I could bet that in some point of life you did as well. As a child at home or friends' or maybe even as teenager or adult. With kids, parents, siblings, friends or even alone. Everyone can play with LEGO bricks. No matter the age or company.
The best thing about them is that You can create almost everything You want! Cars, buildings, planes, tanks, ships or more complex scenes containing lot of objects and minifigures. Scale? It's all up to You. Feel free to choose how big buildings You want to make. It is awesome way of spending time. You can move Your creativity, try different ways to achieve something, create something that no one ever did. Borrow Your kid's bricks, bring Yours from the basement or use ones You may have in Your room. I know a lot of people who have them or hid them somewhere in the house at some age.
Unpack Your bricks, look at them, think what You want to build. You can look for ideas in Your surrounding, on the Internet or in Your imagination. If You have kids or younger brother or sister - ask them to join You. You can learn something from them, child's imagination is remarkable, as well as You can teach and show them different possibilities. Cooperate, create something together or build totally different items. Maybe try to build big city, space station, a lot of different cars or anything You can think of. Will You give it a shot? Travel to times when You were a kid and You will sink for many hours of fun and creativity!