The ones that least seems to be relevant at the moment, as they happen.
When I was 7 years old I saw a movie (Terminator II but it is not important) with my uncles. There was completely silence during the movie in the room. The movie was a little bit frightening but it meant so much to me: It was the first time when I felt grown up.
I remember the first traditional barbecue with my parents at my grandmother. We used wood sticks to roast the beacons. I do not remember the taste, but the atmosphere was incredible.
When I hugged my parents on my wedding and said “Thank you”. It was special, because hugging each other is not a habit, where I grown up.
The first kiss with my Love. It was on the first date three years after I met her. It was sudden, it was spontaneous.