Try using first-magnitude stars and distinctive asterisms as guides.
- Ophiuchus: between Vega and Antares
- Perseus: west of Capella
- Aquarius: north of Fomalhaut
- Aries: west of the Pleiades
- Capricornus: take a line from Vega to Altair (both are members of the Summer Triangle) and extend it south. Altair lies about halfway between Vega and Capricornus
- Libra: between Spica and Antares
- Pisces: south and east of the Great Square of Pegasus