How can i get some weight, 28y. 60kg. 178cm?

You are in the: Lower normal range for height/weight. If you want to gain weight you need to eat more than you burn off. It's 3500 calories to the pound, but you need to increase your activity and exercise or all that extra weight will become fat rather than muscle.

Weight Gain: Look to build lean muscle mass - increase protein and good fats and carbohydrates. Find an app that can calculate the calories you need to intake in order to gain a particular amount of weight. Myfitnesspal and loseit are apps for weight loss, the former may have a way to calculate the reverse.