If it's a drudge to write it, it is a drudge to read it. I (as a reader) don't want to read this:
He turned around and started walking to the nearby store. He bought a bread and a yoghurt. Then he came back and gave the groceries to the homeless guy.
That is a drudge to read. It tells me unneeded details of mundane things - and honestly, it leaves out even more mundane details. If you have to tell me that he walked to the store, then don't you have to tell me that he got there and went through the store to the bakery section to get the bread then to the dairy section for the yoghurt? Don't you have to tell me he stood in line at the checkout and paid for the stuff? You left those details out because they aren't important, and you can leave out the detail about walking to the store because it isn't important, either.
You don't want to just tell people the boring things. You want to tell people the important things and let them assume the dull stuff happened.
Fred was early this morning. He'd slept poorly and gotten out of bed early to escape the nightmares. At this rate, he'd have to wait an hour for the gates at the machine shop to open so he could get to work.
To kill time, he took a detour through a part of town he usually avoided. It was dangerous at night, but safe enough during the day time - the drug dealers and other criminals tended to sleep in.
He'd spent enough time here to know how dangerous it could be - he'd escaped the danger and the poverty, but he hadn't forgotten the hopelessness or the hunger. He'd never get rich working at the machine shop, but he didn't have to wonder where his next meal was coming from.
His feet led him through the streets to a place he knew all too well. He'd huddled there in the dark on many a hungry night. As he passed by, he glanced down the alley with the abandoned crates and dumpsters where he'd often hidden and caught sight of a rumpled looking fellow trying to keep warm in a nest of old newspapers.
Fred thought "Poor bastard. Nobody ever helps anybody around here."
Well, why not?
Fred patted his back pocket - his wallet was there, with the remains of the twenty bucks he'd used to buy groceries the day before. A look at the clock on the jewelry store down the street showed he still had more than enough time to get to work.
A hot cup of coffee and a sandwich, and maybe one more homeless, hopeless loser would find the strength to get up and leave this nasty place in search of a better life.
"Yo, dude. How'd you like a bite to eat?"
The rumpled figure under the newspapers reached greedily for the sandwich, trying to eat and say "Thanks" at the same time.
Fred hunkered down with the coffee cup, and waited.
From there, Fred and your homeless person can get into a conversation.
Fred didn't explicitly go to the grocery store, but it is implied that he did.
I don't care that Fred went to the grocery store. I want to know why he was someplace with homeless people and why he stopped to help one.
I don't know what lead your character there. Tell me about that, rather than the boring "walked to the grocery store, bought stuff, gave it to somebody."
As a reader, I'm fully capable of figuring out that your character isn't walking around with a loaf of bread and a cup of yogurt in hand and had to buy it somewhere - if you give me hints that it is possible.
As a reader, I want you to write the things I don't know about your characters, their world, and their story.