Thanks @Bretto77 and @ellicat - much appreciated, will definitely check out those videos.
We've managed to get some good advice on lures and bait at fishing shops, so will try out the various options, but I think what I'd like to get some advice on is how to fish from the shores of rivers - we're happy to do a bit of walking, but particularly what to look for in a good fishing spot - e.g. flowing water (is fast flowing/slow flowing/still better?), upstream/downstream?, how weather and water clarity affects things (does wind/choppy water affect things? Sediment? Bright sunshine?), structures (pools, rocks, trees?).
Sorry, a bit of a grab-bag - but various bits and pieces of heard might be factors, but not sure how to put them all together!
Cheers
Ben