What should we use in this grammar? 有点儿 或者 一点儿

1. 有点儿+adj. ->complaint; adj.+一点儿-> expectation
2. 一点儿+n. a few of sth.

一、"一点儿" is a quantifier. It has all the grammatical features of a quantifier.
1、"一点儿" is used before a noun to indicate a small quantity. For example:
（1）我喝了⼀点⼉酒。
（2）我给了她一点儿钱。
2、"一点儿" is used after an adjective to explain it. For example:
（1）请说慢一点儿。
（2）能不能便宜一点儿？
二、“有点儿” is the abbreviated form of“有一点儿”. lt is an adverbial phrase which is
used to modify a verb or an adjective following it.
1、In the structure“有点儿+ Adj."，“有点儿” indicates the speaker's unsatisfaction. For example:
(1) 这件衣服有点儿贵。(The speaker hopes it can be cheaper.)
Note: It's wrong to say “这件衣服一点儿贵”, but it is right to say “这件衣服贵一点儿那件便宜一点儿。”
(2)你说得有点儿快。(The speaker hopes “you” can speak slower.)
Note: It's wrong to say “你说得一点儿快”, but it's right to say “请说快一点儿”。
2.有点儿+V.
(1)他有点儿想家了。
(2)我有点儿爱上他了。

1.
有点儿冷
有点儿饿
有点儿累
-->有 + 点儿 + Adj: 有点儿 MEANS "quite"
2.
少吃点儿
多喝点儿水
多看书一点儿
-->少/多 + V + 点儿: 点儿/一点儿 MEANS a bit
3.
说慢一点儿
吃多一点儿
拿多一点儿
--> V + Adv + 一点儿: 一点儿 MEANS a bit, you need to do things a bit faster/slower/more/...

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