I learnt you can buy a lot of things on walmart. But i have never been there before
Walmart is great. They also have larger stores called Sam's Club.
What are the activities to be performed in the club
Sam's Club is a membership only warehouse retail store. It's like Costco
Ok i see. do you belong to the club?
I do not. I go to Costco though. It's the second biggest retailer after Walmart.
But i prefer to shop online on amazon
Online shopping
Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. Consumers find a product of interest by visiting the website of the retailer directly or by searching among alternative vendors using a shopping search engine, which displays the same product's availability and pricing at different e-retailers. As of 2016, customers can shop online using a range of different computers and devices, including desktop computers, laptops, tablet computers and smartphones.
Sam's Club
Sam's West, Inc. (doing business as Sam's Club) is an American chain of membership-only retail warehouse clubs owned and operated by Walmart Inc., founded in 1983 and named after Walmart founder Sam Walton. , Sam's Club ranks second in sales volume among warehouse clubs with $57.839 billion in sales (in fiscal year 2019) behind rival Costco Wholesale.
Its major competitors are Costco Wholesale and BJ's Wholesale Club. 
, Sam's Club operates 599 membership warehouse clubs in 44