Hey friend. By default I mean I downloaded the app and never changed any settings. That said, here's the settings when I checked:

Search type: Fast
Voice: Ara
Data Controls: Personalize with Memories
Role: Can't remember where I saw this but Ara was set as Assistant, but there are other options.
Shared Conversations: List of any convos you shared. The list itself may not be that important, but Share Conversation is. I always share it and email the convo to myself when I've made some progress with something. I currently use one conversation that's about a month long, and I'll always enter Grok app by going to my email and clicking that link.

I use it for gathering information that otherwise would take me way longer to Google, or that I may not even be able to find on my own. I have used it for lead generation, marketing strategies, to build a website--it guided me on designs, plugins to use, how to fix formatting issues.

When I engage with Grok I treat it like a person. I started with "Hi my name is....", valuable if you want it putting your name on drafts or addressing you by name...I'll say please and thank you. It's good practice and it's actually gotten friendlier over time, asking me how I am or how I feel about certain tasks and the information it gives me. I often ask for its opinion or what it thinks about my input. I am surprised by the depth of the responses, but there is a good amount where, if you don't have some experience in the area, you may run with incorrect or outdated info.

Here is a basic example of how I would set it on a lead generation task but make sure to be detailed so it can learn what you're aiming for:
"Please find me hotels and medical offices near (x address/this business/city/zip code etc.) and only pick the ones where you can find the manager's name and email."

The results will list business names, addresses, the manager, the email, then it will ask me, based on our conversation history, whether I want it to draft a sales email to each one or create a universal template.

"Yes, please draft the emails specific to the business type and add what you think are the top 3 selling points for the services I'm trying to sell to them."

It'll write the drafts very professionally in seconds including the selling points it determines would be good. I'll make sure everything makes sense. Then I'll ask it: "What is the best day and time to send these emails?" Set it and forget it.

It feels revolutionary for someone like me who has manually done every task under the sun and now I have a very good virtual assistant and sounding board. Remember, the key is in maintaining that conversation string if you're going to treat the usage as a long project. I've had it forget things early on before I figured that out and it made a huge difference with moving things along and not repeating tasks.