Some brief points.
Know what you want before you view. Write out a checklist: no. of bedrooms, garden, car parking etc.
Look past the decoration. If the house feels right otherwise, it doesn't take much to give it a coat of paint.
Take a tape measure. Know the size of your largest and most treasured items of furniture, if you have any.
ook at electric points and switches and the fuse box to get an idea of the state of the wiring.
Look at the water heater and central heating system. How old is it? Will it need replacing?
Look at window frames for signs of rot.
Look at the tops of walls and ceilings for signs of damp.
Look at wall joints (particularly bays) for any cracks that may be due to subsidence.
Outside, look at the roof (from the ground) for any signs of sagging. Ask when any flat roofs were last renewed (usually last about 10 years). On any outbuildings too. Check they are not corrugated asbestos. (Not a problem if they are not going o be disturbed.)
Hope that will get you started.