unexpansive

discreet laid-back mild muted reasonable reticent subdued tasteful unobtrusive

chilled controlled cool moderate plain retiring shrinking steady withdrawn

bottled-up calm and collected conservative corked up in charge in check inobtrusive on a leash self-controlled soft temperate unaffable undemonstrative under control under wraps unexcessive unextreme uptight

communicative

extroverted friendly outgoing

assured bold confident

humble quiet reserved restrained shrinking withdrawing withdrawn

backward bashful coy demure diffident meek modest nongregarious not forward rabbity recessive reclusive reticent self-effacing timid timorous unaffable unassertive unassuming unsociable

bold extroverted friendly outgoing sociable

demonstrative self-confident