4- المجالس بالامانة

"Gatherings are held with trust."

Meaning, the matters that are discussed in a gathering and whatever else is spoken in that gathering, are all a trust and it's waajib(compulsory) to protect this(keep it a secret). It's waajib on whoever is present in the gathering, not to disclose anything that was discussed in that gathering, except in a few cases a person is allowed to disclose what was discussed:
➡If the people in the gathering are consulting so that they can harm any person or to destroy their wealth.
➡Or they wish to murder a person wrongfully.
➡Or to harass a person.
➡Or to usurp wealth wrongfully.
In all these cases you are allowed to disclose what was discussed, as it is a sin to harm your fellow brother or sister; by you disclosing what was discussed it's possible that the person can avoid those people, or such a situation and you will be rewarded for helping that person.

5- الحياء شعبة من الإيمان

"Modesty is a branch of faith."

The reason why Nabi صلى الله عليه وسلم said this is because, a person who has modesty will stay away from sin because of his shyness.
He/She will be shy to carry out evil deeds, he/she will be shy to disobey Allah Ta'allah.

Also if a person has modesty , he/she will protect their gaze, their ears, their tongues, their limbs from forbidden things.

6-المرء مع من أحب

"A person will be with whom he loves."

Meaning in the world and the hereafter. If a person loves sinful people, a person will follow in their footsteps, a person will want to live his/her life like them, so Allah will raise themoneyfor amongst those sinful people on the day of judgment.
If a person Nabi صلى الله عليه وسلم, his noble companions رضى الله عنهم, his wives  رضى الله عنهن, his daughter, رضى الله عنهن , good people, Allah will raise him/her amongst those people on the day of judgement.

(And may Allah make us amongst the good people. In Sha Allah)
There is a dua, the wording of which is found in the Quraan, which is very  good to read.

ربنا حبب إلينا الإيمان و زينه فى قلوبنا و كره إلينا الكفر و الفسوق والعصيان.

Rabbanaa Habib Ilaynal Eemaan, Wa Zayyinhu Fi Quloobina, Wa Karih Ilaynal Kufra Wal Fusooqa Wal I'syaan.

Oh Allah make Imaan beloved to us, and beautify it in our hearts, and make disliked to us, disbelief,sin,and disobedience.