Almighty Allah says:

'There is no good in much of their private counsels, except for him who advocates charity, or kindness, or reconciliation between people. Whoever does that, seeking Allah’s approval, We will give him a great compensation.' (Surah an-Nisa, 114)

When we have nothing beneficial to say, silence is golden.

We should avoid speaking ill of others.  We should rather remain silent unless we are seeking justice for some wrong that has been perpetrated against us.

Allah says:

'Allah does not like the public uttering of bad language, unless someone was wronged. Allah is Hearing and Knowing.' (Surah an-Nisa, 148)

Our tongues are like double-edges swords.  They can work for us and against us, both in this world and the Hereafter.  We will be held accountable for what we say.

Allah tells us:

'Not a word does he utter, but there is a watcher by him, ready to record it.' (Surah al-Qaf, 18)

We must be vigilant not to speak falsehood.  We must think about what we are saying and the possible consequences of our words before we go ahead and speak.

Showing hospitality to the neighbor and the guest - from the perfection of a person’s faith is his showing kindness to those with whom he has dealings, especially his neighbors and his guests.

Almighty Allah says:

'Worship Allah, and ascribe no partners to Him, and be good to the parents, and the relatives, and the orphans, and the poor, and the neighbor next door, and the distant neighbor, and the close associate, and the traveler, and your servants. Allah does not love the arrogant showoff.' (Surah an-Nisa, 36)

It can mean making allowances for the neighbor’s needs, even by waiving some of one’s own rights. It can take the form of gift giving.

Islam teaches us to be generous and hospitable to those who come to us as guests.  Indeed, those who come to our homes have a right over us.