Physical basis (sheldon)
i) Endomorphic - Fatty, round, cheerful, short height.
ii) Mesoporhic - Strong build up, tall, properly Shaped body, cheerful.
iii) Ectomorphic - Thin, long, depressed.
Mental basis
i) Extrovert : high self confidence, social, friendly, make more friend, confident, responsive, lively, leader.
ii) Introvert :- Poor Self confidence, talkative, busy in own moody, unsocial, pessimist, quiet, rigid.
iii) Ambivert :- Moderate confidence level, makes few friend. It has the mix qualities of extrovert & introvert.