Below are the sunnah (and ibadah as well) during the Eid al Adha. Performing them makes you feel better and brings you many benefits in hereafter for sure.
• Reciting tashrik takbir (see what is tashrik takbir and when to start it)
• Waking up early
• Having ghusl
• Using miswaq
• Wearing perfume
• Wearing ring
• Going to Eid Salah on foot
• Use two separate route to and from the masjid
• Revealing your love and compassion
• Smiling (not to mourn)
• Visiting relatives
• Visiting olds
• Visiting graveyard for remembering death
• Rejoicing the children
• Eliminating resentments
• Empowering fraternity
MashaAllah! May Allah make it easy for us. amin thumma amin.