Good spells for Warlocks D&D 5e?

[Demarcario]

What are some good 1st and 2nd level spells for a 4th level warlock?

[Yagyujubei]

Hex is a must have spell. armor of agathys is good if you're going melee, command is good if yur gonna hang back although you have to be fiend pact for it. the only REALLY important lvl 1 spell is hex, after that it depends on what kinda character you want to play. faerie fire from fey pact is also amazing.

for level 2 darkness is a lynchpin in the infamous devils sight+darkness combo. mirror image is an amazing defensive ability with no concentration, misty step is a great escape spell to take if you arent already fey pact.

anyway, theres alot of good insight here:

http://community.wizards.com/forum/player-help/threads/4133456

so you can read that and pick what fits your playstyle best

[Demarcario]

Hex is a must have spell. armor of agathys is good if you're going melee, command is good if yur gonna hang back although you have to be fiend pact for it. the only REALLY important lvl 1 spell is hex, after that it depends on what kinda character you want to play. faerie fire from fey pact is also amazing.

for level 2 darkness is a lynchpin in the infamous devils sight+darkness combo. mirror image is an amazing defensive ability with no concentration, misty step is a great escape spell to take if you arent already fey pact.

anyway, theres alot of good insight here:

http://community.wizards.com/forum/player-help/threads/4133456

so you can read that and pick what fits your playstyle best

thanks for the help!

[Falling Icicle]

Charm person is a great 1st level spell and is available to warlocks of any pact. They end up hating you an hour later, but if you disguise yourself that's not a problem. The mask of many faces invocation is a great combo with this spell for that reason.

Suggestion can be very powerful, both in and out of combat, especially when used creatively.

Invisibility is always a good choice. It's great for everything from scouting to defense.

Hold person is devastating against humanoid targets. It not only prevents the opponent from doing anything, it also gives you and all of your allies advantage on your attack rolls and automatic crits if you hit them.

If you go with the fiend pact, blindness/deafness is fantastic. It doesn't screw over an enemy quite as badly as hold person, but it works on any type of creature, not just humanoids. More importantly, it's one of the few debuffs in the game that doesn't require concentration, so you can use it together with hex or other spells to really ruin your enemy's day.

[Felvion]

Pact and playstyle are crucial info missing here. You pick different spells as blade-lock than a chain-lock scouter or a tome charlatan. Also race plays a role too since a drow for example wouldn't pick darkness.