I've always thought that a Warlock's pact was, idk, more intimate or direct with their patron? As opposed to a Cleric's faith-based relationship with their god. From what I've seen, Clerics don't necessarily communicate directly with their patrons, hence faith.

The idea of a direct bond between a Warlock and a patron always gave me the impression that there was meant to be communication between them. I play a Celestial Warlock who resents her patron, so I constantly talk to her to "annoy" her. But also I do genuinely ask for her direction/advice on stuff, particularly religion or when it comes to the terms of our pact (as my patron does require some specific service). She doesn't necessarily respond with words, but she does respond with wordless thoughts and feelings/sensations.

For example, we found this creepy orphanage that taught the kids that all self-sacrifice was godly work or something. I asked my patron what she thought of it, and she wordlessly conveyed that this place made her uncomfortable as well.

Does your Warlock talk to their patron much?

My character has rarely had direct contact with his patron. About once a year, in game time.

Once when the original pack was made.  After that, it's a matter of signs and guidance through coin-flips or other such random events.

Nope, but I'm sure something would happen if my character veered too far from expectations. The Hexblade seems to be satisfied.

Oh yes, or well, more like her patron talked to her a lot. When I played my warlock she would usually be contacted by her patron through dreams or telepathic messages at regular intervals. Usually it was to convey orders as my warlock was very much a servant of a greater (and evil) being, having made the pact out of sheer desperation. Though as my warlock became closer with her (good-aligned) party, her patron began to basically manipulate her and gaslight her into thinking her companions were liars who were just using her and that her patron was the only being she could trust. 

It lead to some very fun situations where my warlock was trying to make moral decisions with her patron whispering in her ear. Our cleric saved her in the end, from herself and her patron.  

At almost every session i find a reason to talk to my patron.  By asking him for info or advice it allows my DM the opportunity to get info out to the group, or not, at her discretion.  Plus as my patron is a fiend, i must weigh what i am being told against the chance that he ( and my DM) is just screwing with me.

A couple of times in an adventure arc usually. Face to face dreams and all that. I wrote in an inbetween, a lower level celestial to do most of the heavy story lifting tho.

It's different for all my warlocks.  My first, was a sorlock (lock 2/sorc 5) who's patron (fluffed as part of his divine sorcerer background) Lolth tormented his dreams relentlessly.  My second is a bardlock (bard 1/lock X presently) of Mystryl rarely communicates because that story went way off the rails and my patron relationship just isn't part of the story my DM wants to tell.  My third (sorc 1 lock X presently) has a much more personable relationship with his celestial patron, the astral deva Lumalia who serves as a bit of a guide and mentor besides providing power.

My Feylock talks on the regular with Oberron, the Green Lord. So if we are dealing with any sort of forest or woods related problems, the DM usually has him whisper things to my character. Also part of my service to Oberron is kink related so when we are in town, he will sometimes be my characters invisible wing-man to figure how who he wants me to seduce because he gets to absorb pleasure from us mere mortals at the full moment of....ahem. Occasionally my DM will also let me do a persuasion check for essentially a one question commune with patron so to speak if our party really needs help or information. 

Definitely it veers to a more intimate relationship than a cleric to their deity is typically depicted.

depends on how the pact came... cause for my hexblade warlock, he still doesn't even know who his patron is, but by subtle hints, its some form of giant (either storm, frost or fire). As for my lurker of the deep warlock, her patron comes to her in a similar manner as an assimar's angelic guide would.

I'm a 7th level Tomelock. Amount of times I've had two way verbal communication with my patron: 0. All of my communication is through my Grimoire. I have to write down everything magical I encounter. My warlock thinks it's Sehanine, one of the Seldarine, but that's not actually confirmed. It's part of the mystery and the character's story arc.

I think communication amount is built into the pact's nature and style. Some patrons may be communicative and others not. Others may choose to communicate, as mine has, through alternate means, like dreams or books. And I think that's part of the awesome role-playing involved with Warlocks. Patrons and pacts make for fantastic story lines that DMs can and should work into the plot.

Sometimes the patron visits in disguise, sometimes communicates through shadows or ravens (hexblade / Shadowfell )

My patron’s relationship is very personal with my warlock.

My patron is an Archfey who made a bet to find “Good Evil”. As such, she saved my warlock (drow) at a young age and now basically tutors him to ensure she wins said bet.

She does this by being his companion (Pact Chain) and helping him become “Good Evil”.

Never.

My Warlock whispers to her sword, and occasionally it will grow ice cold - her signal that she needs to start slashing at something.
Once she hit (about) level 12, while in the Shadowfell, her sword started talking to her. So, now it's more of a two-way communication thing, even though it's sometimes cryptic. She's not sure sometimes if it's just the sentient sword speaking, or if it's actually the Raven Queen speaking through the sword.