A little guidance would be appreciated.

I was never one of the cool kids in school, and I went to a really conservative college. So I find myself at almost 30, ready to try weed for the first time, with a hookup. Its been suggested that since Ive never smoked before (and neither has my husband)...$20 bucks worth will give us a good first try. We'll be doing it alone in our apartment.

How do we do this? Do we need to buy a pipe? Grab an apple?
Will we feel anything? What are we feeling for? Is $20 worth good for two people?
Should we have anything prepared? Food?

Any advice, words of warning, general knowledge is welcome.

Update: Well...last night was the night. I was gifted a joint. I joked with my friend that this was how she was going to get me hooked. The first one is always free, right? We were prepared. Ace Ventura was queued up, we had snacks including starbursts, funions and some diet dr pepper. We went out onto the balcony, and lit up.

I was warned that as a newb, one good hit was probably all we needed. The first hit resulted in nothing. Second, nothing. Third, nope. My guy bit the tip off, and thats when we started getting it. Not understanding that when we started feeling it, that was our clue to stop, we finished it. We smoked the whole joint. Just to make sure it got a good hold. We were thinking alcohol. You keep drinking to keep your buzz. If you stop, it goes away, right? Oh man, lesson learned. That may have been a mistake. We were feeling pretty cool when we had to get a bobby pin to hold it while we finished it.
We stumbled back into the apartment, and giggled at our stoner faces in the mirror. Sat on the couch, and found the movie to be highly annoying. Turned it off and switched to music instead. Thats when I started getting a little concerned that we may have done too much. It builds and builds and builds! And if you hold your breath, its like you get a second charge of it. I felt like I was laying on my back in the middle of a merry go round and some bastard kid was spinning it faster and faster and faster. I was fucked up. I kept reminding myself to relax and I was not going to die. My guy got frisky around that point, so one thing lead to another and yadda yadda yadda. I had a hard time focusing on that, tbh. It did help with the spinning, having something to hold onto, and thats when things changed again. I felt my skeleton floating inside of my body. The cells of my skin floated and waved in the air, like sea anemone tenticles drifting as waves roll above them.
Then it was starburst time. THAT was amazing. It was like Disney's Ratatouille. I saw shapes and colors while I chewed it. I could feel every crystal of sugar fall over my tongue. And I wanted to chew it forever.

It was at that point, that we passed out. Crashed hard and slept about 12 hours. I don't know if and when I'll do it again. I doubt that I'll ever want to get THAT stoned. That was CRAZY.

TL/DR: Got SUPA stoned first time out, screwed, ate starbursts, passed out.