The quests below are some examples of the many "Taking Point" quests that Preston Garvey himself will ask you to do. Basically, you have to head to the location Garvey marks in the map, clear the area of enemies, then activate the location's workbench to enable it to become one of your many workshops and for you to prepare for more settlers to come in. Talk to Garvey once again after clearing the area to receive your caps and exp rewards.
(Taking Point - Starlight Drive-in)
Talk to Garvey to start this quest. You have to clear the area so you can use it as a new settlement. Walk in the parking lot and clear out the molerats. Be careful of the highly radioactive pond in the parking lot as well. After clearing the mole rats, locate the workbench behind a Novice locked door in a shed to activate the area as a new workshop. You also need to build a generator and recruitment beacon. Remember to scrap the drums in the pond to permanently remove the radiation they're emitting. There's a lot of items you can scrap in the area so you'll have enough materials to build the necessary items.
(Taking Point - Hangman's Alley)
Talk to Garvey to start this quest. The area itself is rather small and confined and there’s only a handful of raiders you need to kill to free up this space. Take note that you can scrap the default shack walls and roofs to clear out are and tidy it up to your own taste.