--Creates a login
USE [master]
GO
CREATE LOGIN [Test] WITH PASSWORD='P@ssw0rd'
GO

--Create Users in the database
USE [Smarts]
GO
CREATE USER [Test] FOR LOGIN [Test]
GO

--Grants Select permissions to the table
use [Smarts]
GO
GRANT SELECT ON [dbo].[Customers] TO [Test]
GO

--Alteratively you could add each user to the db_datareader 
USE [Smarts]
GO
EXEC sp_addrolemember N'db_datareader', N'Test'
GO

--CREATE A User defined role
USE [Smarts]
GO
CREATE ROLE [UR_SELECT_ROLE]
GO

--AND the test user to the role
USE [Smarts]
GO
EXEC sp_addrolemember N'UR_SELECT_ROLE', N'Test'
GO

--GRANT SELECT permissions on the table to the new role.
--Add the users to this role that need the same permissions set
use [Smarts]
GO
GRANT SELECT ON [dbo].[LAPTest] TO [UR_SELECT_ROLE]
GO