Riddle (Floating)?!

Question: White as snow or a multicolored hue.
Floating around or stuck to one's shoe.
Flying true, or falling slow,
unknown directions that are easily shown.
Silent and light,
and causes no fright.
Just a bit of wind,
and I go flying with a friend.
Alone I am not much,
but with many a soft touch.
Gathered with friends at night,
I may not be heard.
but my host during light,
you will hear, most assured.

---

---

Answers: White as snow or a multicolored hue.
Floating around or stuck to one's shoe.
Flying true, or falling slow,
unknown directions that are easily shown.
Silent and light,
and causes no fright.
Just a bit of wind,
and I go flying with a friend.
Alone I am not much,
but with many a soft touch.
Gathered with friends at night,
I may not be heard.
but my host during light,
you will hear, most assured.

---

---

A feather

---

---

A cloud? Bird poo? Pollen?!

---

---

---