[xenthebrain]

I fold the first hand. If there were more peole involded I would call. But not 4 handed with 77 capepd preflop.

I would bet the turn in Hand. I think you just called the flop to raise the turn, so why not bet with the rag coming and him checking.
The chances for a check-raise are very slim, and don't give him a free card if he sits on overcards.