Pokud tyhle slovicka budete chtit pouzit o cloveku, tak je to takto:
1. He / she is nice - mily - mila, sympaticky/a, prijemny-prijemna
2. She is pretty - pekna, hezka
3. He is handsome - pekny, hezky
4. She is beautiful - krasna
Nesmite rict jako u nas krasny chlap - a beautiful guy, protoze se vam budou smat, proste o muzich mluvi handsome a o zenach pretty (pekna) a beautiful (krasna)

Nice - hezký, pěkný, příjemný milý sympatický.
Použití:
- příjemný, milý sympatický od přírody - a nice time., a nice person
- mající hezký, příjemný vzhled - a nice dress, a nice face
- projev zdvořilosti - a nice gesture
- that is nice of you - to je od tebe hezké/milé
- nice and warm - zdůraznění, "hezky teplo"

Pretty - adj. (přídavné jméno) pěkný, hezký půvabný
Použití:
- strašný, špatný - a pretty predicament (difficult situation)
- adv. - příslovce - ve symslu docela, celkem - a pretty good student

Beautiful - krásný, půvabný, fyzicky přitažlivý
- neříká se o mužích

Handsome - půvabný, fyzicky přitažlivý, krásný - a handsome man
Použití:
- vyjádření velkého množství, nebo velikosti, ve symslu značný, štědrý - handsome reward
- vyjádření dovednosti, zručnosti - a handsome trick, a handsome maneuver
- ve smyslu vhodný, padnoucí, náležitý, přiměřený - a handsome location for the new school

nice - can mean a lot of things, if it is about a person it is usually about character, not about the appearance.
She is a nice girl (kind, good).
About things - It is a nice car! = comfortable, good, beautiful. I think it is nice = I like it, it is good.

handsome - you can use it when you talk about the beauty of the man. You say: He is a handsome man!  When you say a handsome man it means physically attractive in a traditional, manly way. You can use for women too but it will mean in some strong way, maybe a bit manly.

beautiful - very attractive, very pleasant. A general word that can be used for everything.

pretty -  pleasant to look at, or (especially of girls or women or things relating to them) attractive or pleasant in a delicate way. So it is sweet. For example: what a pretty dress! That girl is very pretty! It has nothing to do with manly things.

'nice' is mostly use in a common language when we want to say that we like something. Usually it refers to physical appearance (a nice view, a nice room, a nice shirt) or the intrinsic qualities of the object - a nice person (may be kind, helpful, loving) . We are not somehow specially impressed though.

'pretty' is the adverb we use when we want to emphasize our impression about something (a pretty irresponsible decision, a pretty clever maneuver) or when we want emphasize our feeling about certain fact ( he was a pretty clever student, his choice changed pretty much nothing)

'handsome' refers to pleasing the form of appearance, often with distinguished feature ( a handsome face) or when we want to emphasize the appropriateness (a handsome kitchen)

'beautiful' refers to a fact or a statement that have qualities extraordinarily appealing to our feelings or sense (it was such a beautiful melody, he has a beautiful speech)