How to View Conversation Context?

I've only been on twitter a few years and never really used it much. Now I'm getting very involved with it and there's a question that, after hours of Googling, I can't find the answer to.
Say I reply to a tweet and get involved in a semi-live conversation where we're all trading comments and replies. Then I may move on and have conversations in other threads I encounter.
A couple of days may go by and then I'll see a reply notification from someone who's responding to something I said some time ago and all it says is something like "Oh yeah. Well, that's not the way I see it".
Is there any away to view the whole of the thread, or at least a few entries before the reply, to get a sense of what that person was responding to?
Is there an internal Twitter feature or trick, or a separate addon or extension, or a substitute for the twitter app that would facilitate this?

 

I also don't use twitter that often, but if I remember correctly, there is a link "View conversation", clicking which opens the original tweetplus replies to it.

You have to click the link in the notification first though...

 

I'm using the web version on a PC and I can't find "view conversation" at any menu depth. I recall seeing it on some rare occasion, but I think the OP has to designate their tweet as a convo before that button will appear.

 

Doesn't seem to work on the web version, but someone got me the right answer.

"Click on the timeline next to the replier's name. That little ''3h'' next to the replier @. It will take you to another page with the full exchange."

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