hand 1)
betting into 8 players even if it's checked to you isn't exactly smart with single lone pair. general rule is you should rarely try to bluff more than 2 people. on turn you have three of a kind (hidden as well) the bettor might have the flush but board will pair something like 25% of the time to give you the fullhouse and often if it does, you can stack people who can't let go of their flush. so this should be a call unless you need to call off bigger than 25% of your stack



2) easy lay down bottom 2 pair on co-ordinate board indicates trouble, you will often be facing something like made straight, higher 2 pair, set etc
generally you need to be the aggressor and when you get played back at, I would lay it down