This will make them happy..

إِنَّكُمْ لَنْ تَسَعُوا النَّاسَ بِأَمْوَالِكُمْ، وَلَكِنْ يَسَعُهُمْ مِنْكُمْ بَسْطُ الْوَجْهِ وَحُسْنُ الْخُلُقِ

أخرجه البزار

The Prophet peace be upon him said ‘You cannot make people happy with your wealth, but you can make them happy with you by means of a cheerful face and good attitude’

(Narrated by Abu Hurayrah collected by Al-Bazzar)