Itās been three years in the community space.
In my initial years, I was not even aware of the concept of conferences.
In 2020 the pandemic gave me a lot of new experiences and one of them was Exposure to Conferences.
My first testing conference was sponsored as I just stopped working at that time and was on break.
I was super excited. I wanted to listen to it all, know all, and do everything possible. I was tired at the end of it. This was a major mistake.It drained me off.
I slept and took two days of solid rest to get back on track. It was virtual. The talks were interesting. I was new to the space. I was like a little rabbit jumping everywhere.
The same year again i attended my second virtual conference.
The concept of this conference was 8-minute talks for a day 100+ talks drained me again with no energy left.
No notes were made. Focussed on competitions and contests.Did some networking.
Left me with back pain as i did not move from my desk for a second.I enjoyed the high post-conference but was sick again.
Attended the first MOT Test Bash because of @marie.drake .I was pretty new to the concept. I felt a little out of the zone and did not attend them well.I knew no one. Didnt, know how to interact with anyone. I watched the recordings of some talks and learnt things. Learning wise it was good.I didnāt relish networking-wise.
Attended the next Test Bash again because of @friendlytester
This was a little better than the previous one. I got used to the conference, people etc.
From then I attended a lot of virtual meetups and conferences.
In some, I spoke as well. So I cherish them.
While attending conferences I had a few observations
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Itās not possible to get all the knowledge at once. Look at the schedule prior. List out the talks you want to attend. and if that did not fit in any alternate. Next, what do you want to watch in the recording?
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Keep water and food ready with you.
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Get up a little stretch and move a bit.
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Try to attend with friends so that you can distribute note-taking activity.
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Here is one of what we did
https://testflix-2022-notes.super.site/
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Use one-one for chats and make those deep connections
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Interact with sponsors in breaks if possible and listen to their offerings. See if it might help you.
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Complement speakers whose talks you resonated with. It makes their day.
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Create a repository of all resources you collected from them and share it with the wider community. Each time you attend a conference create another folder and have a repository for it.
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For meetups and webinars make mindmaps and carousels of the session and share it on Linkedin and Twitter and tag them or send a personalized note to the speaker.
Dont forget to blink your eyes 
These were for virtual conferences.
As for the in-person conference
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I suggest being present at the venue a little early.
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Carry snacks and water mandatory
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Meet and greet people as much as you can as they are the best places to make those connections.
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Attend one or two talks of your choice. Donāt stress yourself out.
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Click lots of pictures and post them.Make memories.As recordings would be available.
Get someone to get your pictures clicked if you are a speaker 
Conferences are never only about learning. Itās always about people, interaction and having a great time.
Record Great videos too for memories.
Lastly, write a helpful experience report that would help people the next time.