This is the most common and easiest method in obtaining samples.
Usually this happens when brands want to promote their new products or provide a fresh introduction of existing products to consumers.
There would be a sign up page set up by the brand concerning the samples and all you need to do is to sign up and collect as per instructions given.
There won’t be any “looks” from the staff and you probably don’t need to talk much to them too.
It’s usually fuss free but you would need to provide personal details such as handphone/email address/name/nric number etc…