Best place to start if you are northern hemisphere is "the Big Dipper" (Plough, Ursa Major or Great Bear) pointing at the Pole Star. The Pole Star (Polaris) lies almost exactly at the point at which the night sky seems to "turn". The constellations closest to that never set (Circumpolar constellations). Orion is easy in autumn/winter, Pegasus and Cygnus easier in summer. The Ecliptic is the path around which the sun and moon seem to travel - this varies quite a bit over the seasons. Constellations around the Ecliptic are often signs of the Zodiac (Cancer, Gemini, Ares etc). Some of these are poorly observed from Glasgow because that's a long way north of the Egypt/Mesopotomia, the source of the "classic" zodiac signs. My point is - once you know you're constellations (takes at least a year from natural viewing) then spotting planets becomes a lot easier - because they don't stay "fixed" like the constellations do. Be wary of mistaking satellites for stars or planets - the International Space Station is very very bright. Satellites change position a lot faster than planets do. Practise makes perfect. There's 1000s of sites to Google on this stuff, hopefully you've got just enough knowledge now to get appreciate what they are talking about.