The first ten days of Dhul Hijjah are often referred to as the best ten days of the year. The Prophet (peace and blessings of Allah be upon him) said: “There are no days on which righteous deeds are more beloved to Allah than these ten days.” [Bukhari]
Be kind to your parents
Talk good or be silent
Reading Qur'an
Read as much as you can, even if it is a few verses each day.
Increase in sunnah Prayers
Make lots of dhikr
Our Prophet (peace and blessings of Allah be upon him) said: “There are no days that are greater before Allah or in which good deeds are more beloved to Him, than these ten days, so recite a great deal of tahleel, takbeer and tahmeed during them.” [Ahmad]:
➖Tahmeed: Al-hamdu Lillah
➖Tahleel: Laa ilaha ill-Allah
➖Tasbeeh: Subhaan-Allah
Istighfaar
Use these blessed days to seek forgiveness for all our wrongdoings.
Fasting
Fast on the day of arafah if not all days.
The Prophet said: “Fasting the day of `Arafah expiates the sins of two years: the past one and the coming one.” [Muslim]
Visiting the sick and giving charity are a few others
بارك الله فيكم